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1985 VIN Number breakdown Available Engines in 1985
Available Transmissions in 1985 1985 Rear Axle and Gear Identification 
1985 IROC-Z Dimensions 1985 Computer Trouble Codes
1985 Exterior Color Information 1985 Interior Color Information
1985 Factory Options (RPO's) View the 1985 Showroom Brochure
1985 IROC-Z Key Points of Interest

1985 Total Produced (RPO B4Z)

21,177

 Dealership Sticker Price

$15,800

 

1985 VIN Breakdown Example:    1G1FP87H6FN100001

1

G 1 FP 87 H 6 F N 100001
1st Digit 2nd Digit 3rd Digit 4th & 5th Digits 6th Digit 8th Digit 9th Digit 10th Digit 11th Digit 12-17 Digits

Nation of Origin

1=USA

2=Canada

Manufacturer

G=General Motors

Division

1= Chevrolet

7= GM of Canada

Carline/Series

FP=Sport Coupe or Z28

Body Type & Restraint System

87=Coupe 2dr Sport

Engine Code

See Below

Check digit VIN position

Model Year 1985

Assembly Plant Code

N-Norwood, Ohio

L-Van Nuys, Cal.

Number in line at assembly plant

1xxxxx--Norwood

4xxxxx--Van Nuys

 

Available Engines in 1985

RPO #

Liter Injection C.I.D. H.P. Rating Engine Code # Produced
LG4 5.0 Carbureted 305ci 155hp H 63,052
L69 5.0 Carbureted 305ci 190hp G 2,497
LB9 5.0 Tuned Port 305ci 215hp F 32,836

 

Available Transmissions in 1985

RPO #

Type Specifications ID # Produced
MXO Auto 4 Speed with OD 700R4 152,600
Man 76mm 4 Speed
Man 83mm 4 Speed
Man 77mm 4 & 5 Speed

 

1985 Rear Axle and Gear Identification

The code to identify your axle gear is located on the front face of the right hand axle tube about three inches from the differential cover.

Number Decode

A typical code could be 8PS 0 103 2 - The initial number and next two letters (8PS) indicate the axle code, here a 1985 Posi with a 3.73 axle ratio. The next number or letter (0) identifies the manufacturer, the next three digit number (103) indicates the date of manufacture, and the final digit (2) indicates the shift that this rear was produced.

Axle Code

Axle Ratio

Axle Type

8JA 3.08 Standard
8JB 3.23 Standard
8JC 3.42 Standard
8JD 3.73 Standard
8JP 3.08 Posi
8JQ 3.23 Posi
8KA 3.42 Standard
8KB 3.73 Standard
8KR 3.08 Standard
8PP 3.08 Posi
8PQ 3.23 Posi
8PR 3.42 Posi
8PS 3.73 Posi

 

1985 Dimensions

Length Height Width Wheelbase
187.8 Inches 49.8 Inches 72.0 Inches 101.0 Inches

 

1985 Computer (ECM) Trouble Codes

There is a way to read the codes by counting the flashes, but I would recommend simply going to some auto parts store and buying a GM code reader that plugs into your car. They are around $20.00

Code

Circuit or System

Probable Cause

12 No distributor reference pulse This code will flash whenever the diagnostic terminal is grounded with the ignition On and the engine not running. If additional trouble codes are stored, they will appear after this code has flashed three times.
13 Oxygen Sensor Circuit Sticking Throttle Position Sensor; Poor electrical connection; open or short circuit; defective oxygen sensor; defective ECM.
14 Coolant Temperature Sensor Circuit Engine overheating; poor electrical connection, open or short in circuit; defective coolant temperature sensor; defective ECM.
15 Coolant Temperature Sensor Circuit Poor electrical connection, open or short in circuit; defective coolant temperature sensor; defective ECM.
21 Throttle Position Sensor Sticking or misadjusted TPS; poor electrical connection, open or short in circuit; defective TPS; defective ECM.
22 Throttle Position Sensor Sticking or misadjusted TPS; poor electrical connection, open or short in circuit; defective TPS; defective ECM.
23-Carbureted Models Mixture Control Solenoid Open circuit or short to ground in the mixture solenoid circuit; defective ECM-if the mixture control solenoid is shorted to ground, the ECM may have been damaged.
23-Fuel Injected Models Manifold Air Temperature Sensor Poor electrical connection, open or short in circuit; defective MAT sensor; defective ECM.
24 Vehicle Speed Sensor Poor electrical connection, open or short in circuit; defective VSS; defective ECM; a fault in this circuit should be indicated only when the vehicle is in motion. Disregard Code 24 if it is set when the drive wheels are not turning.
25-Fuel Injected Models Manifold Air Temperature Sensor Poor electrical connection, open or short in circuit; defective MAT sensor; defective ECM.
32-Carbureted Models Differential Pressure Sensor Defective differential pressure sensor; poor electrical connection, open or short in circuit; defective ECM.
32-Fuel Injected Models(V8 only) EGR System Restricted vacuum hose to EGR solenoid or valve; poor electrical connection, open or short in circuit; defective EGR solenoid; defective EGR valve; defective ECM.
33-(All except 1989 & earlier MPFI V6 and TPI V8) MAP Sensor Leaking or restricted vacuum hoses; poor electrical connection, open or short in circuit; defective MAF sensor; defective ECM.
33-(1989 and earlier MPFI V6 & TPI V8) MAF Sensor Poor electrical connection, open or short in circuit; defective MAF sensor; defective ECM.
34-Carbureted Models Differential Pressure Sensor Leaking or restricted vacuum hoses; poor electrical connection, open or short in circuit; defective differential pressure sensor; defective ECM.
34-Fuel Injected Models-(except 1989 & earlier MPFI V6 & TPI V8) MAP Sensor Leaking or restricted vacuum hoses; poor electrical connection, open or short in circuit; MAP sensor; defective ECM.
34-(1989 & earlier MPFI V6 & TPI V8) MAF Sensor Poor electrical connection, open or short in circuit; defective MAF sensor; defective ECM.
35 Idle Speed Control TPS sticking or misadjusted; poor electrical connection, open or short in circuit; defective IAC valve; defective ECM.
36-(1989 & earlier MPFI V6 & TPI V8) MAF Sensor Burn-Off circuit Poor electrical connection, open or short in circuit; defective MAF sensor burn-off relay; defective MAF sensor; defective ECM.
41-Carbureted Models No distributor reference pulses to ECM with engine running Poor electrical connection, open or short in circuit; defective distributor pick up coil; fault in the MAP or differential pressure sensor circuit.
41-Fuel Injected Models Cylinder Select error Incorrect or defective MEMCAL or ECM.
42 Electronic Spark Timing Poor electrical connection, open or short in circuit; defective ignition module; defective ECM.
43 Electronic Spark Timing Poor electrical connection, open or short in circuit; defective ESCmodule; defective knock sensor; defective ECM.
44 Lean Exhaust Lean condition caused by malfunctioning carburetor/fuel injector, vacuum leak, low fuel pressure, etc.; poor electrical connection, open or short in circuit; defective MAP sensor; defective oxygen sensor; defective ECM.
45 Rich Exhaust Rich condition caused by restricted air filter, fuel in evaporative charcoal canister or crankcase, malfunctioning carburetor/fuel injector, high fuel pressure, etc.; defective TPS; defective MAP sensor; defective oxygen sensor; defective ECM. 
46 Vehicle Anti-Theft System(VATS) Poor electrical connection, open or short in circuit; incorrect ignition key or starting procedure; defective VATS module; defective ECM.
51 PROM - ECM chip Defective PROM; PROM not properly installed; incorrect PROM installed; defective ECM.
52 Fuel CALPAK Defective CALPAK; CALPAK not properly installed; incorrect CALPAK installed.
53 EGR Control Leaking, restricted or improperly routed vacuum line; EGR valve stuck or leaking; poor electrical connection, open or short in circuit; defective EGR solenoid; defective ECM.
53 System Over Voltage Charging system problem.
54 Mixture Control Solenoid Open circuit or short to ground in the mixture solenoid; defective ECM-If the mixture control solenoid is shorted to ground, the ECM may have been damaged.
54 Fuel Pump Circuit Defective fuel pump; defective fuel pump relay; defective oil pressure switch; poor electrical connection, open or short in circuit; defective ECM.
55 ECM Poor electrical connection, open or short in circuit; defective ECM.
61 Oxygen Sensor Contaminated Oxygen Sensor.

 

1985 Exterior Color Information

The exterior color RPO should be a number followed by the letter U, ie. 11U = White
Code Exterior Colors # Produced Available Interior Colors
11 White 18,822 BK, C, G, R, S
12 Silver 11,684 BK, G, R, S
15 Medium Gray 17,545 BK, G, R, S
19 Black 28,438 BK, C, G, R, S
26 Dark Blue 14,986 BK, G, S
30 Bright Blue 17,635 BK, G, S
50 Yellow 4,599 BK, G, S
54 Light Yellow 5,437 BK, C, G, S
60 Light Brown 3,093 BK, C, G, S
69 Copper 11,406 BK, C, S
75 Red 31,473 BK, G, R, S
78 Maroon 14,903 BK, G, R, S

Color Codes: BK=Black, C=Copper, G=Gray, R=Red, S=Saddle

1985 Interior Color Information

The interior RPO will be listed as follows

RPO

Color

19B Black - Standard Cloth
19C Black - Custom Cloth
19D Black/Gray - Contour Custom Cloth
19E Black/Gray - Contour Standard Cloth
19N Black - Custom Vinyl
19R Black - Standard Vinyl
62B Saddle - Standard Cloth
62C Saddle - Custom Cloth
62D Saddle -Contour Custom Cloth
62E Saddle - Contour Standard Cloth
62N Saddle - Custom Vinyl
62R Saddle - Standard Vinyl
68B Copper - Standard Cloth
68C Copper - Custom Cloth
68N Copper - Custom Vinyl
72B Red - Standard Cloth
72C Red - Custom Cloth
72D Red -  Contour Custom Cloth
72E Red - Contour Standard Cloth
72N Red - Custom Vinyl
72R Red - Standard Vinyl
82B Gray - Standard Cloth
82C Gray - Custom Cloth
82N Gray - Custom Vinyl
82R Gray - Standard Vinyl

 

1985 Factory Option RPO (Regular Production Order) Numbers & Costs

Your RPO's can be found on a decal inside the center glove box
RPO # Description Quantity Cost RPO # Description Quantity Cost

1FP87

Camaro Z28 Sport Coupe, V8 68,403

$11,060.00

K34 Speed Control, with Resume 84,884 175.00
AG9 Power Seat, Driver Side 32,080 215.00 LB8 Engine, 173ci, 135hp, V6 78,315 335.00
AM9 Seat Back, Split Folding Rear 21,295 50.00 LB9 Engine, 305ci, 215hp, V8 32,836 680.00
AU3 Power Door Locks 70,658 125.00 LG4 Engine, 305ci, 155hp, V8 63,052 635.00
A01 Tinted Glass, All Windows 166,996 110.00 L69 Engine, 305ci, 190hp, V8 2,497 680.00
A31 Power Windows 88,381 185.00 MX0 Transmission, Auto with OD 152,600 395.00
A90 Power Hatch Release 93,467 4F0.00 N33 Tilt Steering Column 133,457 110.00
BS1 Quiet Sound Group 4,954 82.00 N90 Wheels, Aluminum, Std Z28 7,960 225.00
BX5 Moldings, Black Roof Drip n/a 29.00 QAC Tires, P235/60R15 Blackwall 16,884 85.00
B34 Floor Mats, Front 114,989 20.00 QHW Tires, P205/70R14 White Letter 34,224 146.00
B35 Floor Mats, Rear 110,085 15.00 QHX Tires, P205/70R14 Blackwall 8,224 58.00
B48 Luggage Compartment Trim 18,418 164.00 QHY Tires, P205/70R14 White Stripe 13,886 124.00
B4Z IROC Sport Equipment Package 21,177 659.00 QMX Tires, P195/75R14 White Stripe 42,055 62.00
B84 Moldings, Body Side 119,465 55.00 TR9 Lighting, Auxiallry 74,080 72.00
B91 Moldings, Door Edge, Black 26,852 15.00 TT4 Headlamps, Halogen (4) 56,761 22.00
CC1 Roof Panels, Removable Glass 63,543 821.00 UA1 Battery, Heavy Duty 52,480 26.00
CD4 Windshield Wipers, Intermittent 79,051 50.00 UL5 Radio 11,143 56.00
C25 Rear Window Wiper,w/ Washer 7,367 120.00 UT4 Radio, Stereo,Tape,Clock, s/s,eq 12,400 242.00
C49 Defogger, Rear Window 119,137 140.00 U05 Horns, Dual 22,233 12.00
C60 Air Conditioning 146,381 730.00 U21 Gage Package 20,675 149.00
C67 Air Conditioning, Electronic 13,135 730.00 U35 Clock, Quartz 809 35.00
DG7 Mirrors, Electric Twin Remote 21,626 139.00 U64 Speakers, Two Rear 4,270 30.00
DK6 Console, Roof 23,816 50.00 U69 Radio, AM/FM 11,384 82.00
D27 Cover, Locking Rear Storage 9,680 80.00 U75 Antenna, Power 25,997 60.00
D35 Mirrors, Sport R&L Remote Ext 93,225 53.000 V08 Cooling, Heavy Duty 11,332 70.00
D42 Cover, Rear Compartment Cargo 56,615 69.00 YE1 Radio, AM/FM Stereo 10,109 212.00
D80 Spoiler, Included with Z28 62,128 69.00 YE2 Radio, Stereo,Cassette,Clock,s/s,eq 34,675 504.00
F41 Suspension, Sport 19,231 49.00 YE3 Radio, Stereo, Cassette, Clock, s/s 49,955 354.00
G80 Rear Axle, Limited Slip 15,327 95.00 YFI Radio, AM/FM Stereo 7,833 173.00
J65 Brakes, Power F&R Disc 19,871 179.00 YF5 Emission Equipment 19,805 99.00
K05 Heater, Engine Block 6,384 20.00 ZJ7 Rally Wheels 90,925 112.00

View the 1985 Chevrolet Camaro Showroom Brochure


~ 1985 IROC-Z Key Points of Interest ~