2002 Mustang V6 Engine Diagram

Foxbody Mustang Engine Specifications

Look below for all the information you need to know about the V8-equipped 1979-93 Foxbody Mustang. Full 5.0 engine and block specifications for all 5.0L V8 Foxbody Mustangs; from assembly materials to camshaft specifications, we have it all.

1987-1993 Foxbody 5.0 SEFI V8 Engine Part Diagram

1979-1993 5.0L V8 Foxbody Mustang Power Ratings

Year Engine (cu/L) Horsepower @ Torque @ (ft-lb) CR Intake
1979 302/5.0L 140 @ 3600 250 @ 1800 8.4:1 2bbl carb
1980 255/4.2L 118 @ 3800 193 @ 2200 8.8:1 2bbl carb
1981 255/4.2L 115 @ 3400 195 @ 1600 8.2:1 2bbl carb
1982 255/4.2L 111 @ 3400 194 @ 1600 8.2:1 2bbl carb
1982 302/5.0L 157 @ 4200 240 @ 2400 8.3:1 2bbl carb
1983 302/5.0L HO 175 @ 4200 245 @ 2400 8.3:1 4bbl carb
1984 302/5.0L HO 175 @ 4200 245 @ 2400 8.3:1 4bbl carb
1985 302/5.0L HO 210 @ 4400 270 @ 3200 8.4:1 4bbl carb
1986 302/5.0L HO 200 @ 4000 285 @ 3000 9.2:1 SEFI SD
1987 302/5.0L HO 225 @ 4200 300 @ 3200 9.0:1 SEFI SD
1988 302/5.0L HO 222 @ 4200 300 @ 3200 9.0:1 SEFI SD*
1989 302/5.0L HO 220 @ 4200 300 @ 3200 9.0:1 SEFI MAF
1990 302/5.0L HO 220 @ 4200 300 @ 3200 9.0:1 SEFI MAF
1991 302/5.0L HO 220 @ 4200 300 @ 3200 9.0:1 SEFI MAF
1992 302/5.0L HO 220 @ 4200 300 @ 3200 9.0:1 SEFI MAF
1993 302/5.0L HO 205 @ 4200 275 @ 3000 9.0:1 SEFI MAF
1993 Cobra 302/5.0L GT40 235 @ 4600 280 @ 4000 9.0:1 SEFI MAF


*California '88 5.0's were MAF
**Output ratings from 1987-1993 had slight variations due to slight changes over the years. Ford did not change their rating for these year to year ratings. Above is actual output. 205hp is the most realistic and closest to actual output.

1987-1993 5.0L V8 Foxbody Mustang Engine and Component Weights

Component Weight (~lbs)
Engine Assembly 540
Engine Block 126
Cylinder Head 43
Intake Manifold 37
Crankshaft 38
Connecting Rod 1.2
Piston 1.3

5.0L Engine Block Specifications

Feature Size
Displacement 4942 cc, 4.94L; 301.6 cu in.
Cylinder Bore 4.00 in; 101.6 mm
Main Bearing Bore 2.2486 in; 57.1144 mm
Lifter Bore .876 in; 22.35 mm
Distributor Shaft Bore .4532 in; 11.51 mm
Bore Centres 4.38 in; 111.24 mm
Deck Height 8.206 in; 208.4 mm
Deck Length

20.84 in; 529.34 mm

1979-1993 5.0L V8 Foxbody Mustang Block Cast Numbers

Year Part number
1979 D8VE-6010-AA
1982 E0AE-6010-DD
1983-84 E2AE-6010-KA
1985 E5AE-6010-HA
1986-1993 E6SE-6010-DC

1979-1993 5.0L V8 Foxbody Mustang Crankshaft Info

Year Part Assembly Main Bearing Journals Rod Bearing Journals
1979 D9TE-6303-EA Cast 2.2486 in 2.21232 in
1982-85 E1AE-6303-AA Cast 2.2486 in 2.21232 in
1986-93 E2AE-6303-EA Cast 2.2486 in 2.21232 in


1979-1993 5.0L V8 Foxbody Mustang Pistons

Year Type Part
1979-84 Sand cast aluminium D9OE-6110-AA
1985 Forged aluminium E4ZE-6110-SB
1986 Forged aluminium E6ZE-6110-BA
1987-92 Forged aluminium E7ZA-6110-CA
1993 Hypereutic aluminium (cast) F3ZE-6110-AA

1979-1993 5.0L V8 Foxbody Mustang Cylinder Head Specs

Year Volume Intake Exhaust Part Number
1979 67.5-70.5 cc 1.782 in 1.46 in D9AE-6049-AA
1980-81 53.6-56.5 cc 1.680 in 1.46 in Unknown
1982-84 67.5-70.5 cc 1.782 in 1.46 in Unknown
1985 67.5-70.5 cc 1.782 in 1.46 in E5AE-6049-CA
1986 62.9-65.9 cc 1.782 in 1.46 in E6AE-6049-AA
1987-93 60.6-63.6 cc 1.782 in 1.46 in E7TE-6049-PA
E5TE-6049-PA

1985-1993 5.0L V8 Foxbody Mustang Camshaft Specs (Roller Rockers)

Year

Lift (in)

Duration (°)

Event Phasing (°)

Overlap

Lobe Centre

Part Number

1985-88 HO

Int: .278
Exh: .278

Int: 266
Exh: 266

IO: 16
IC: 48
EO: 57
EC: 19

°: 35
Factor: 13.58

Int: 115
Exh: 115

E5ZE-6250-AA


1989-90

Int: .278
Exh: .278

Int: 276
Exh: 266

IO: 20
IC: 76
EO: 67
EC: 19

°: 39
Factor: 19.51

Int: 116
Exh: 115

E8AE-6250-CA


1991-94

Int: .278
Exh: .278

Int: 276
Exh: 266

IO: 20
IC: 76
EO: 67
EC: 19

°: 39
Factor: 19.51

Int: 116
Exh: 115

F1ZE-6250-AA


1993 Cobra

Int: .282
Exh: .282

Int: 270
Exh: 270

IO: 19
IC: 71
EO: 75.5
EC: 14.5

°: 33.5
Factor: 15.24

Int: 115
Exh: 121.5

F3ZE-6250-CA

IO = intake opening BTDC, IC = intake closing ABDC, EO = exhaust opening BBDC, EC = exhaust closing ATDC

1986-1993 5.0L V8 Foxbody Mustang Intake Info

Year Description Part Number Matching Gasket
Upper
1986 HO SEFI, inline oval runners F0VZ-9424-A FEL-PRO Part #MS93334
1987-93 HO SEFI, inline oval runners F0ZZ-9424-A FEL-PRO Part #MS93334
1993 Cobra SEFI, staggered round runners F3ZZ-9424-C FEL-PRO Part #MS93334
Lower
1986-93 HO SEFI, inline oval runners E6SZ-9424-C FEL-PRO Part #MS93334
1993 Cobra SEFI, staggered round runners F3ZZ-9424-C FEL-PRO Part #MS93334

1986-1993 5.0L V8 Foxbody Mustang Throttle Body Info

Year Type Throttle Body Diameter Flow Sensor Diameter Air Flow
1986 SD 58 mm NA 541 cfm
1987-88 SD 60 mm 55 mm 580 cfm
1989-93 MAF 60 mm 55 580 cfm
1993 Cobra MAF 65 mm 70 638 cfm

75mm TB will suffice for pretty much any 5.0L engine. Bigger is not much use.

Foxbody Cylinder Head Bolt Torque Specs

Year Engine Torque (ft-lbs)
1979-1993 2.3L 4-Cylinder First step 50-60 ft-lbs, then second step 80-90 ft-lbs
1979-1992, 1993 non-flanged bolts 5.0L V8 First step 55-65 ft-lbs, then second step 65-72 ft-lbs
1993 flanged bolts 5.0L V8 First step 25-35 ft-lbs, second step 45-55 ft-lbs, then third step 75-85 ft-lbs

Foxbody Cylinder Head Bolt Tightening Sequence

Foxbody Mustang Transmission Specifications

Throughout the production run of the Foxbody Mustangs (1979-1993), Ford implemented 4 different transmissions - 3 automatics and 1 manual. Use the links below to navigate the specifications on the SROD, AOD and C4/C5 automatic transmissions as well as the Borg-Warner (now Tremec) T5.

Foxbody Drivetrain and Transmission Diagrams

1979-1993 Foxbody Mustang Factory Drivetrain Specs
AOD Cutaway Diagram
C4/C5 Cutaway Diagram
T5 Cutaway Diagram

Foxbody AOD, C4/C5, SROD Automatic Transmissions

1979-1983 1/2 SROD Transmission Gear Ratios
1979-1982 C4/C5 Transmission Specs
AOD Automatic Transmission Gear Ratios
AOD Automatic Transmission Torque Converter & Stall Speeds

Foxbody T5 Transmission

T5 5 Speed Transmission Specs
Worldclass vs NWC T5 and T5 Limit
Clutch Specifications
Foxbody TKO-500 and TKO-600 Swap
Foxbody T56 Swap

1979-1993 Mustang Factory Drivetrain Specs

Year Engine Transmission Ring Gear Size Standard Gear Ratio Optional Gear Ratio
1979 5.0 L SROD 4spd
C-4 3spd auto
7.5 in
7.5 in
3:08:1
2.47:1
NA
3.08:1
1980 4.2 L C-4 3spd auto 7.5 in 2.26:1 NA
1981 4.2 L C-4 3spd auto 7.5 in 2.26:1 3.08:1 Trak-Lok
1982 4.2 L C-5 3spd auto 7.5 in 2.73:1 3.08:1 Trak-Lok
1983
1983 1/2
5.0 L SROD 4spd
T5 5spd
7.5 in 3.08:1 Trak-Lock
3.27:1 Trak-Lok
NA
1984 5.0 L T5 5spd 7.5 in 3.08:1 Trak-Lok 3.27:1 Trak-Lok
1984-85 (CFI)
1985 4bbl
5.0 L AOD 4spd auto
T5 5spd
7.5 in 3.27:1 Trak-Lok
2.73:1 Trak-Lok
NA
3.08:1 Trak-Lok
1986 5.0 L AOD 4speed auto 8.8 in 3.27:1 Trak-Lok NA
1986-93 5.0 L T5 5spd 8.8 in 2.73:1 Trak-Lok 3.08:1 Trak-Lok
1987 5.0 L AOD 4speed auto 8.8 in 2.73:1 Trak-Lok 3.08:1 Trak-Lok
1988-93 5.0 L AOD 4speed auto 8.8 in 2.73:1 Trak-Lok 3.27:1 Trak-Lok
1993 Cobra 5.0 L T5 5spd 8.8 in 3.08:1 Trak-Lok NA

SROD 4 speed Transmission Specs (automatic)

Year 1st 2nd 3rd 4th Reverse Input Shaft Length
1979-83 1/2 3.07 1.72 1.00 .70 3.07 7.8 in

C4/C5 Automatic Transmission Gear Ratios

Year 1st 2nd 3rd Reverse Factory Lubricant
1979-1982 2.46 1.46 1.00 2.18 Dexron II, 11 qts

C4/C5 Torque Converter

Year Ratio Stall Speed (rpm)
1979 2.05:1 ~1500
1980 2.09:1 ~1500
1981 2.09:1
2.28:1 (CA)
~1500

AOD Automatic Transmission Gear Ratios

Year 1st 2nd 3rd 4th Reverse Factory Lubricant
1984-1993 2.40 1.47 1.00 .667 2.00 Mercon ATF, 12.3 qts

AOD Automatic Transmission Torque Converter

Year Ratio Stall Speed (rpm)
1984 2.28:1 1600-2200
1985-88 2.53:1 1600-2200
1988-93 2.30:1 1600-2200

T5 5 Speed Transmission Specs

Year 1st 2nd 3rd 4th 5th Reverse Part Number Torque Capacity* Factory Lubricant (5.6 pints)
1983 1/2 2.95 1.94 1.34 1.00 .725 2.76 E3ZR-7003-CA 275-295 ft-lb Dexron II Series D ATF
1984 2.95 1.94 1.34 1.00 .625 2.76 E4ZR-7003-DA 275-295 ft-lb Dexron II Series D ATF
1985 3.35 1.93 1.29 1.00 .675 3.15 E5ZR-7003-FA 305-325 ft-lb Dexron II Series D ATF
1986 3.35 1.93 1.29 1.00 .675 3.15 E6ZR-7003-FA/FB 305-325 ft-lb Dexron II Series D ATF
1987-89 3.35 1.93 1.29 1.00 .675 3.15 E6ZR-7003-FB 305-325 ft-lb Mercon ATF (1988 up)
1989 3.35 1.99 1.33 1.00 .675 3.15 E9ZR-7003-AA 305-325 ft-lb Mercon ATF
1990 3.35 1.99 1.33 1.00 .675 3.15 F0ZR-7003-AA 305-325 ft-lb Mercon ATF
1991-93 3.35 1.99 1.33 1.00 .675 3.15 F2ZR-7003-AA 305-325 ft-lb Mercon ATF

*Lower number was factory rated torque number. Factory measurements were done at continuous load, not instantaneous. The higher torque rating is what real world application and 3rd parties have discovered the T5 to withstand.

Foxbody T5 Stock Clutch Specifications

Year Clutch Diameter Hub Material Clutch Part # Pressure Plate Part # Load Capacity
1979-1983 10 in 10-spline, 1 1/16 in Asbestos D9ZC-7550-CA D9ZC-7653-DA 1455 lbs
1984 10 in 10-spline, 1 1/16 in Asbestos E4ZR-7550-AA E4ZR-7653-AA 1540 lbs
1985 10.5 in 10-spline, 1 1/16 in Organic E5ZR-7550-AA E4ZR-7653-AA 1540 lbs
1986-87 10.5 in 10-spline, 1 1/16 in Organic E6ZR-7550-AA E6ZR-7653-AA 1644 lbs
1988-93 10.5 in 10-spline, 1 1/16 in Organic F0ZZ-7550-AA F0ZZ-7563-A 1877 lbs ('88)
1770 lbs ('89)
2012 lbs ('90-93)
1993 Cobra 10.5 in 10-spline, 1 1/16 in Organic F3ZZ-7550-A F3ZZ-7563-A 2124 lbs

New 1979-1993 Mustang Parts

Foxbody Mustang Brake Specifications

Even rolling out of the factory, the stock brake setup employed by Ford on the Foxbody Mustang was less than adequate to effectively control the power and speed capable of the accompanying stock 302 cu (5.0L) V8 engine. Comprised of cast-iron, centrally vented rotors up front clamped by single piston calipers, and a basic drum setup in the back, these brakes really weren't up to par to handle even a stock 225HP Foxbody. Listed below are the full sizing and material specifications of the brake systems installed over the Foxbody era.

1979-1993 V8 Mustang Factory Brake Specifications

1979 1980-81 1982-86 1987-93 1993 Cobra
Front Rotors
Front Disc, cast-iron vented Disc, cast-iron vented Disc, cast-iron vented Disc, cast-iron vented Disc, cast-iron vented
Rotor Diameter 10.06 in 9.31 in 10.06 in 10.84 in 10.84 in
Rotor Thickness 0.870 in 0.870 in 0.870 in 1.03 in 1.03 in
Rotor Area 275.6 sq.in 249.8 sq.in 275.6 sq.in 316 sq.in 379.3 sq.in
Pad Composition Asbestos Semimetallic Semimetallic Semimetallic Semimetallic
Rear
Type Drum, solid unvented Drum, solid unvented Drum, solid unvented Drum, solid unvented Disc, vented
Diameter 9.0 in 9.0 in 9.0 in 9.0 in 10.07 in
Width 1.73 in 1.73 in 1.73 in 1.73 in 0.945 in
Shoe/Pad Composition Asbestos Asbestos Asbestos Organic Organic
Hydraulics 1979-83 1984-86 1987-93 (2.3L) 1987-93 (5.0L) 1993 Cobra
Master Cylinder Bore Diameter 22.2 mm 21.0 mm 21.0 mm 21.0 mm 25.5 mm
Caliper Bore Diameter 60.0 mm 60.0 mm
SVO: 72.9 mm
60.0 mm 60.0 mm 72.9 mm front, 45.44 mm rear

Most Popular Foxbody Upgrades Shop All Foxbody Restoration

Foxbody Mustang Ignition & Fuel System

The factory DuraSpark I and DuraSpark II ignition systems used on the late model Foxbody Mustang was actually an excellent ignition system for the time. Read below for all the information you need regarding the ignition and fuel system on Foxbody Mustangs. HO firing order, ignition timing, spark plug gap, fuel pump and injector specifications, it's all below.

Ford 5.0 V8 Cylinder Location
Ford V8 Firing Order
Foxbody Mustang Spark Plugs
Foxbody Mustang Fuel Pumps
Ford Fuel Injector specifications
1979-1985 Foxbody Mustang Ignition Timing
1986-1993 Foxbody Mustang Ignition Timing


1979-1993 Ford V8 Cylinder Banks (facing engine head on)
Left Bank | Right Bank
4 | 8
3 | 7
2 | 6
1 | 5

1979-1993 Ford V8 Firing Order
1979-93 truck V8's (non-HO) and 4.2 L V8: 1-5-4-2-6-3-7-8
1982-93 5.0 L HO V8: 1-3-7-2-6-5-4-8

Foxbody 5.0L Firing Order

1979-1993 V8 Foxbody Mustang Spark Plugs

Year Engine Part Number Gap
1979 5.0 L
5.0 L (California)
ASF-52
ASF-52-6
0.050 in
0.060 in
1980 4.2 L ASF-42 0.050 in
1981 4.2 L ASF-42 0.050 in
1982 4.2 L ASF-52 0.050 in
1983-85 5.0 L 4bbl
5.0 L CFI
ASF-42
ASF-52
0.044 in
0.050 in
1986 5.0 L HO AWSF-52/44 0.050 in
1987-93 5.0 L HO ASF-42 0.054 in
1993 GT40 Cobra AWSF-42C 0.050 in

1979-1993 V8 Foxbody Mustang Fuel Pumps (factory)

  • Carburated Mustang (mechanical fuel pump): 1979:6.5 psi, 1982:8.5 psi
  • CFI Mustang: twin electric: 60 lph @ 39 psi
  • SEFI Mustang: 88 lph @ 39 psi

Ford Factory Fuel Injector Specifications

Flow Color Factory Application Injector Power Capacity
14 lb/hr Grey Non Mustang 5.0 L V8's (trucks, not HO) Don't bother. Change them
19 lb/hr Yellow 5.0 L HO V8 Mustang 330 HP
24 lb/hr Light blue Cobra GT40 (93-95) 400 HP
30 lb/hr Red 2.3 L turbo (early models) 500 HP
35 lb/hr Brown or dark blue 2.3 L turbo SVO Mustang 600 HP

1979-1985 Foxbody Mustang V8 Ignition Timing

Year Initial Timing (deg BTC) Centrifugal Advance (deg @ rpm) Vaccuum Advance (deg @ in. Hg)
1979-81 12 0.0 @ 1250rpm
8.0 @ 2150rpm
14.5 @ 5000rpm
0.00 @ 3.5
14.0 @ 8.0
24.0 @ 13
1982 12 0.0 @ 1200rpm
10.0 @ 2000rpm
19.0 @ 5000rpm
0.00 @ 3.5
14.0 @ 8.0
24.0 @ 13
1983 10 0.0 @ 1400rpm
9.0 @ 2000rpm
18.0 @ 5000rpm
0.00 @ 4.5
11.0 @ 8.0
20.0 @ 12.5
1984 10 0.0 @ 1400rpm
11.0 @ 2200rpm
20.0 @ 5000rpm
0.00 @ 4.5
10.5 @ 8.0
20.0 @ 12.5
1985 12 0.0 @ 1300rpm
11.0 @ 2200rpm
20.0 @ 5000rpm
0.00 @ 4.5
11.5 @ 8.0
20.0 @ 12.5

1986-1993 Foxbody Mustang V8 Ignition Timing
Simply add the amount of your initial timing to any point along the curve and you'll have the total timing for that point. For example if your running an A9L computer and 15 degrees initial timing and you want to know how much total timing you have at 2600 rpm. You would simply add the 15 initial to the 22.5 shown on the chart for a total of 37.5 degrees.

ECU 1000 rpm 1800 rpm 2600 rpm 3500 rpm 5000 rpm
A9L 8 ° 18.5 ° 22.5 ° 22 ° 26 °
A9P 21.25 ° 21.25 ° 27.25 ° 26 ° 30.75 °
X3Z (Cobra) 8 ° 18.5 ° 22.5 ° 22 ° 25 °

Foxbody VIN Decoder

The VIN on any vehicle is a very useful line of characters and numbers. It tells us the year, assembly plant, body type and engine option that the car was factory fitted with. Below is how to decode these magical strings.

1979-1980 Mustang VIN:
ex: 9F04F100001 - 11 characters

Character Significance Crack the code
1st Year 9 = 1979, 0 = 1980
2nd Assembly plant F = Dearborn, R = San Jose
3rd & 4th Body model 02/04 = 2dr notchback, 03/05 = 3dr hatchback
5th Engine F = 5.0L 2bbl, D = 4.2L 2bbl
6th to 11th Production number x Mustang produced for year

1981-1993 Mustang VIN:
ex: 1FABP27M7EF100001 - 17 characters

Character Significance Crack the code
1st to 3rd World manufacturer 1FA = FMC, passenger car
4th Restraint system B = Active manual seat belt, C = Active seat belts airbag
5th Passenger car P = Passenger car
6th & 7th Body model* 10 & 26 (L,GL,GLX), 12 (Ghia), 40 (LX, LX 5.0) = 2dr notchback
16 & 28 (GL,GT,GLX,L,LX), 41 (LX,LX 5.0), 42 (LX 5.0, GT) = 3dr hatchback
27 (GLX,GT,LX), 44 (LX), 45 (GT) = convertible
8th Engine D = 4.2 2bbl, F = 5.0L HO 2bbl/4bbl, M = 5.0L HO 4bbl/CFI/SEFI(1987), E = 5.0L HO SEFI, D = GT40
9th Check digit 0-9
10th Year B = 1981,C = 1982,D = 1983,E = 1984,F = 1985,G = 1986,H = 1987
J = 1988,K = 1989,L = 1990,M = 1991,N = 1992,P = 1993
11th Assembly plant F = Dearborn, R = San Jose
12th to 17th Production number x Mustang produced

* Body style codes depend on what body style was available for corresponding year.
ex: 27 = convertible, but GLX was not used for later years, thus if you have an 88, body code = 27, it can't be GLX.

Foxbody Mustang Technical Service Bulletins

Listed below are some full-text Ford technical service bulletins issued for the Mustang from 1987-1993. This is

not

by any means a complete list.

1987-1993 Foxbody Mustang TSB's

Article No. Title Description Download
95-2-2 Air Conditioning O-ring removal from spring lock coupler. 95-2-2
96-15-6 Air Conditioning Filtering system, flushing, tracer dye, leak test etc. 96-15-6
96-17-10 Air Conditioning USe of R-12 refigerant and substitutes. 96-17-10
95-14-4 Ball Joints Ball joint replacement procedure. 95-14-4
90-22-6 Brake Squeal Occasional or intermittent squeal from brakes. 90-22-6
94-25-2 Brakes Brake rotor machining specifications, information and availability. 94-25-2
95-6-2 Brakes Rougness during application 95-6-2
93-24-1 Bumper Cover Repair/Materials Bumper cover materials and repair procedure. 93-24-1
94-8-1 Bumpers Bumper isolater and bracket assembly, replacement procedure 94-8-1
93-24-10 Dashboard Lights Dimly lit or malfunctioning dash and warning lights. 93-24-10
92-18-6 Engine Engine: 5.0L
Premature wear on thrust bearing or crankshaft.

Metal-to-metal sound, AOD

AOD interference with torque converter & flywheel bolts

92-18-6
96-10-7 Fuel California fuel requirements. 96-10-7
94-8-9 Fuel System Motorcraft fuel injector cleaner - repair parts and service tips. 94-8-9
93-26-1 Glass, Rear Defroster Inoperative rear glass defroster 93-26-1
90-18-3 No charge - Battery Discharged - Fuel Pump Noise 90-18-3
90-1-9 Oil Consumption (5.0L EFI) Details potential causes for excessive oil consumption. 90-1-9
94-24-4 Paint Paint and sheet metal preparation. 94-24-4
96-1-1 Steering Power rack and pinion, revised info for tie rod installation. 96-1-1
96-22-1 Windshield, Interior Glass Health concerns over fogging of windshield and interior glass. 96-22-1
96-24-6 Wiring Electric diode identification and replacement. 96-24-6

Foxbody Mustang EEC-IV Error Codes

If there is an issue with your Foxbody Mustang (engine related), a good place to start is to check if the EEC-IV computer has registered any error codes. There are two ways to do so:

  1. Code scanner: You can buy a code scanner from almost any auto parts store, just verify that it can indeed read the error codes from Foxbody Mustangs. Plugin the code scanner to VIP/DLC connector harness in the engine bay (right-hand, driver side for 86-93) and read out any error codes, if there are any.
  2. Test light: For the procedure on how to pull the error codes from a Foxbody Mustang EEc-IV equipped car, please refer to: DIY KOEO/KOER/Cylinder Balance Self-Test Procedure

Listed below are the possible error codes thrown by the Mustang EEC-IV computer. Accompanied with each code is the potential reason why an error has occurred. Legend: O = Ignition On (accessory), R = Engine Running, C = Continuous Memory

Code Test Condition Cause
11 O,R,C System OK, testing complete
12 R Idle speed control out of specified range
13 O,R,C Normal idle not within specified range
14 O,C Ignition profile pickup erratic
15 O ROM test failure
15 C Power interrupt to computer memory
16 R Erratic idle, oxygen sensor out of range or throttle not closing
17 R Curb idle out of specified range
18 R SPOUT circuit open
19 O No power to processor
19 R Erratic idle speed or signal
21 O,R Coolant temperature out of specified range
21 O,R,C Coolant temperature sensor out of specified range
22 O,R,C MAP sensor out of specified range
23 O,R,C Throttle position signal out of specified range
24 O,R Air charge temperature low
25 O,R Mass Air Flow sensor or circuit
27 C Vehicle Speed Sensor or circuit
28 0,R Vane air temperature sensor or circuit
29 C No continuity In Vehicle Speed Sensor circuit
31 O,R,C Canister or EGR valve control system
32 O,R,C Canister or EGR valve control system
33 R,C Canister or EGR valve not operating properly
34 O,R,C EVP voltage above closed unit
35 O,R,C EGR pressure feedback, regulator circuit
38 C Idle control circuit
39 C Automatic overdrive circuit
41 C Oxygen sensor signal
41 R Lean fuel mixture
42 R,C Fuel mixture rich
43 C Lean fuel mixture at wide open throttle -
43 R Engine too warm for test
44 R Air management system inoperative
45 R Thermactor air diverler circuit
46 R Thermactor air bypass circuit
47 R Low flow of unmetered air at idle
48 R High flow of unmetered air at idle
49 C SPOUT signal defaulted to 1 0-degrees
51 O,C Coolant temperature sensor out of specified range
52 O,R Power steering pressure switch out of specified range
53 O,C Throttle Position Sensor input out of specified range
54 O,C Vane air flow sensor or air charge temperature sensor
55 R Charging system under specified voltage (1984 through 1988)
55 R Open ignition key power circuit (1984 through 1988)
56 O,R,C Mass Air Flow sensor or circuit
57 C Transmission neutral pressure switch circuit
58 O CFI - idle control circuit; EFI - vane air flow circuit
58 R Idle speed control motor or circuit
58 C Vane air temperature sensor or circuit
59 O,C Transmission throttle pressure switch circuit
61 O,C Coolant temperature switch out of specified range
62 0 Transmission circuit fault
63 O,C Throttle Position Sensor or circuit
64 O,C Air Charge Temperature (ACT) sensor
65 C Fuel control system not switching to closed loop
66 O,C No Mass Air Flow sensor signal
67 O,R,C Neutral drive switch or circuit
67 C Air conditioner clutch switch circuit
69 O,C Vehicle Speed Sensor or circuit
72 C System power circuit, electrical interference
72 R No Manifold Absolute Pressure or Mass Air Flow sensor signal fluctuation
73 O,R Throttle Position Sensor or circuit 21
74 R Brake on/off ground circuit fault 21
75 R Brake on/off power circuit fault 22
76 R No vane airflow change
77 R Throttle "goose" test not performed
78 C Power circuit 1
79 O Air conditioner clutch circuit
81 O Thermactor air circuit
82 O Thermactor air circuit, integrated controller circuit
83 O EGR control circuit (four-cylinder models oeM
83 O Cooling fan circuit (V6 models only)
83 O,C Low speed fuel pump relay (1984 through 1988 models)
83 O,C EGR solenoid or circuit (1989 and later models)
84 O,R EGR control circuit
85 O,R Canister purge circuit or transmission shift control circuit
85 C Excessive fuel pressure or flow
85 C Canister purge circuit
86 C Low fuel pressure or flow
87 O,R,C Fuel pump circuit D2
88 O Integrated controller
89 O Lock-up solenoid
91 R,C Oxygen sensor problem, fuel pressure out of specified range or injectors out of balance
92 R Fuel mixture rich, fuel pressure high
93 O Throttle Position Sensor or circuit D
94 R Secondary air system inoperative
95 O,C Fuel pump circuit problem
95 R Thermactor air diverter circuit
96 O,C Fuel pump circuit
96 R Thermactor air bypass circuit
98 R Repeat test sequence
99 R Repeat test sequence
99 R System has not learned to control idle speed
111 O,R,C System Pass
112 O,R,C Air Charge Temp (Ad) Sensor circuit below minimum voLtagE/ 254 F
113 O,C Air Charge Temp (ACT) Sensor circuit above maximum voltagE/ -40 F
114 O,R Air Charge Temp (ACT) out of self test range
116 O,R Coolant Temp (ECT) out of self test range
117 O,R Coolant Temp (EdT) Sensor circuit below minimum voltage/ 254 F
118 O,C Coolant Temp (EdT) Sensor circuit above maximum voitage/ -40 F
121 O,C Closed Throttle Voitage higher or lower than expected
122 O,R,C Throttle Position (TP) Sensor circuit below minimum voltage
123 O,C Throttle Position (TP) Sensor circuit above maximum voltage
124 O,C Throttle Position (TP) Sensor voltage higher than expected
125 C Throttle Position fTP) Sensor voltage lower than expected
126 C BP Sensor higher or lower than expected
129 O,R,C Insufficient Mass Air Flow (MAE) change during Dynamic Response Test
144 C No Oxygen Sensor (HEGO) Switches detected
157 C Mass Air Flow (MAE) Sensor circuit below minimum voltage
158 O,C Mass Air Flow (MAE) Sensor circuit above maximum voltage
159 O,R Mass Air Flow (MAE) Sensor out of self test range
167 R Insufficient Throttle Position change during Dynamic Response Test
171 C Fuel system at adaptive limits, Oxygen Sensor (HEGO) unable to switch
172 R,C Lack of Oxygen Sensor (HEGO) Switches, indicates lean
173 R,C Lack of Oxygen Sensor (HEGO) Switches, indicates rich
179 C Fuel system at lean adaptive limit at part throttle, system rich
181 C Fuel system at rich adaptive limit at part throttle, system lean
182 C Fuel system at lean adaptive limit at idle, system rich
183 C Fuel system at flch adaptive limit at idle, system lean
184 C Mass Air Flow (MAE) higher than expectec
185 C Mass Air Flow (MAE) lower than expected
186 C Injector pulse width higher than expected
187 C Injector pulse width lower than expected
211 C Profile Ignition Pickup (PIP) circuit fault
212 C Ignition module circuit failure - SPOUT circuit grounded
213 R SPOUT circuit
214 C Cylinder Identification (CID) circuit failure
215 C EEC Processor detected Coil 1 primary circuit failure
216 C EEC Processor detected Coil 2 primary circuit failure
218 C Loss of ignition Diagnostic Monitor (1DM) signal-left side
222 C Loss of Ignition Diagnostic Monitor (1DM) signal-right side
223 C Loss of Dual Plug Inhibit (DPI) control
224 C Erratic Ignition Diagnostic Monitor (1DM) input to processor
225 R Knock riot sensed during Dynamic Response Test
327 O,R,C EVP circuit below minimum voltage
328 O,R,C EGR "closed valve" voltage lower than expected
332 R,C Insufflcjent EGR flow detected
334 O,R,C EGR closed valve voltage higher than expected
337 O,R,C EVP circuit above maximum voltage
341 O Octane Adjust Service Pin in use
411 R Cannot control RPM during KOER low rpm check
412 R Cannot control rpm during KOER high rpm check
452 C Isufflcient input from Vehicle Speed Sensor (VSS)
511 O EEC Processor Read Only Memory (ROM) test failure
512 C EEC Processor Keep 4Jive Memory (KAM) test failure
519 O Power Steering Pressure Switch (PSPS) circuit open
521 R Power Steering Pressure Switch (PSPS) circuit did not change states
522 O Vehicle not in PARK or NEUTRAL during KOEO
528 C Clutch Switch Circuit failure
536 R,C Brake On/Off (BOO) circuit failure I not actuated during KOER
538 R IsuffIcient RPM change during KOER Dynamic Response Test
539 O AC On/Defrost ON during KOEO
542 O,C Fuel Pump secondary circuit failure
543 O,C Fuel Pump secondary circuit failure
556 O,C Fuel Pump Relay primary circuit failure
558 O EGR Vacuum Regulator (EVR) circuit failure
564 0 ElectrOD FAN( EDF) circuit failure
565 O Canister Purge (CANP) circuit failure
566 O 3-4 Shift Solenoid circuit failure
629 O Converter Clutch Control circuit failure
998 O,R Hard Fault present

Legend: O = Ignition On (accessory), R = Engine Running, C = Continuous Memory

How do I Check the Engine Diagnostic Codes on My Foxbody?

Believe it or not, it is possible to check your Foxbody Mustang's error codes without using a fancy or specialized automotive scanner. For 1986-1988 Mustangs, all you need is a test light or analog voltmeter and a couple of small gauge jumper wires.

On the driver side towards the back of the engine bay, you need to identify the VIP/DLC connector and jump the #2 SIGRTN (signal return) and STI (self test port) together (unfolding a big paper clip will work). Connect a test light or analog voltmeter to the battery and the negative lead to the STO (self test output) port. The ECU will then send two-digit codes, indicated by light flashes (each digit is separated by a 2-second pause, and each code is separated by a 4-second pause), which can then be looked up in a code chart to understand their meaning.

Instead of using a test light or voltmeter, 1989-1993 Foxbody Mustang owners can use the check engine light (it will flash with the codes). For more information on specific codes, refer to the above chart.

Foxbody Fluid Capacities and Torque Ratings

See below for basic Foxbody 5.0L V8 engine fluid capacities and general bolt torquing information.

Torque Lists and Diagrams
Foxbody Mustang 5.0L torque ratings diagram

Engine Oil

Engine Capacity Oil Type*
2.3 Non-turbo, All V6 & V8's 4 qts
5 qts with filter change
10W-30 (0 deg C)
5W-30 (below 0°C)
2.3 turbo 4.5 qts
5.5 qts filter change
10W-30 (0 deg C)
5W-30 (below 0°C)

Foxbody Fuel Capacity (all engines)

Year Tank Capacity Minimum Grade
1979-93 15.4 gal, 60 L 87

General Torque Specifications

Application Torque Additional Info
Wheel Lugs 80-105 ft-lbs 1979-1993
Spark Plugs 5-10 ft-lbs
10-15 ft-lbs
10-15 ft-lbs
5-11 ft-lbs
10-15 ft-lbs
5-10 ft-lbs
4 cyl
2.8L V6
Inline six
3.8L V6
79-87 V8
88 on V8
Oil pan drain plug 21-38 ft-lbs
15-25 ft-lbs
2.8L V6
All other engines
Intake Manifold 12-18 ft-lbs Sequence: Start with the inner bolts, and change diagonally on each bolt (hand tighten first). Torque in the same sequence.

Foxbody Weight Breakdown

  • LX Manual Coupe - 3,037 lbs
  • LX Manual Hatchback - 3,102 lbs
  • LX Manual Convertible - 3,238 lbs
  • LX Automatic Coupe - 3,097 lbs
  • LX Automatic Hatchback - 3,162 lbs
  • LX Automatic Convertible - 3,298
  • GT Manual Hatchback - 3,191 lbs
  • GT Manual Convertible - 3,327 lbs
  • GT Automatic Hatchback - 3,251 lbs
  • GT Automatic Convertible - 3,442 lbs
  • 1993 Cobra - 3,255 lbs
  • 1993 Cobra R - 3,143 lbs

Interior Trim Differences By Submodel

  • 1980: Bucket seats, colored interior trim, window, and wide body moldings
  • 1981: minor interior changes, t-tops
  • 1983: Seat and door trim
  • 1984: Saleen model (different trims altogether), front fascia, grille, flush headlights
  • 1987-1993: exterior moldings, color-keyed rear bumper, hood scoop, rocker extensions (GT)
  • 1989: T-top options removed

Fitment includes: 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993

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Posted by: garyrosenzweige06255.blogspot.com

Source: https://www.americanmuscle.com/foxbody-mustang-info-specs.html

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