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Old 06-09-2005, 05:14 PM   #1
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Have Ses Codes For 1991 Camaro, How Do I Know What They Mean

I recently pulled the codes off of my camaro. I used the paperclip technique and got code 32 and code 52. This is off of a 1991 camaro with a 5.0 V8 TBI. Where do I go to find out what these two codes mean? Is there a place on the internet because I sure can't find one. I went to Autozone and he looked them up and only found the 52. I also asked the guys at Texaco Lube and what their book said was different than Autozone's computer. I just need to know what they really stand for. ANY HELP IS GREATLY APPRECIATED!!! THANKS GUYS.
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Old 06-13-2005, 06:47 PM   #2
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Re: Have Ses Codes For 1991 Camaro, How Do I Know What They Mean

Q: How can I display the error codes from a Service Engine Light?

A: If your car does not have the 12 pin DLC connector, you may not be able to manually "flash" your trouble codes. The language "may be possible" appears to suggest that this method should work with most, if not all, 12 pin DLC equipped cars.

THE CONNECTOR


-----------------------
| 1 2 3 4 5 6 |
| 7 8 9 10 11 12 |
-----------------------


DISPLAYING THE TROUBLE CODES
Run a wire/hairpin from Pin 6 to Pin 12 with the ignition off (although on later cars it should be from Pin 5 to Pin 6), then turning the ignition to the on position without starting the engine will flash the "Service Engine Soon" light in the following sequence: flash, pause, flash-flash, long pause flash, pause, flash-flash, long pause flash, pause, flash-flash, long pause Following this "12" code repeating three times will come any trouble codes stored, flashing each of them three times. If you do not see the "12" flash three times, your diagnostic circuit is defective.
Some vehicles will display stored trouble codes, then "12" again, followed by energizing "most system controlled relays." The fuel pump relay will not energize. The idle air control valve will fully extend to enable checking minimum idle speed.

CLEARING THE TROUBLE CODES
Turn the keyswitch to the off position. To clear any trouble codes, disconnect the power feed for 30 seconds. If this is done at the battery, and your car stereo is equipped and programmed with a four digit pin code, you may have to re-enter that as well to use your stereo again. A better place to remove power is at the fuse.

TROUBLE CODES


12. No reference pulses to Electronic Control Module (ECM).
13. Oxygen sensor signal stays lean during warm engine cruise
14. High temperature indicated at engine coolant temp. sensor
15. Low temperature indicated at engine coolant temp. sensor
16. High battery voltage OR
Direct inition system open or shorted to ground
17. RPM signal problem
18-20. N/A
21. High voltage at throttle positon sensor
22. Low voltage at throttle positon sensor OR
Fuel cutoff relay circuit open or shorted to ground
23. Low temperature at manifold air temperature sensor OR
Throttle position sensor error
24. Circuit fault in vehicle speed sensor
25. High temperature at manifold air temperature sensor OR
Vacuum switching valve circuit open or shorted to ground OR
High voltage at ATS sensor
26. Fault in quad driver module
27. Fault in 2nd gear switch
28. Fault in 3rd gear switch
29. Fault in 4th gear switch
30. N/A
31. Low voltage at manifold absolute pressure sensor OR
Fuel injector OR
Park or neutral switch OR
CAM diagnostic OR
Governor malfunction OR
Wastegate overboost OR
Wastegate eletrical signal open or shorted to ground
32. Fault in barometric pressure sensor circuit OR
Fault in exhaust gas recirculation valve diagnostic switch OR
Fault in electronic vacuum regulator valve
33. High voltage (low vacuum) at mass air flow sensor (or MAP sensor)
34. Low voltage (high vacuum) at mass air flow sensor (or MAP sensor)
35. Idle speed can not be set to desired RPM
36. Burn off at mass air flow sensor OR
Problem in transmission shift OR
Fault in direct ignition system OR
Missing pulses in electronic spark timing signal
37. N/A
38. Fault in torque converter clutch brake switch
39. Fault in torque converter clutch circuit
40. N/A
41. Fault at cam sensor OR
Cylinder select error OR
Tach input error
42. Fault at electronic spark timing circuit OR
Fault at direct ignition system OR
Fault at fuel cutoff relay circuit
43. Low voltage at electronic spark timing circuit
44. Oxygen sensor lean
45. Oxygen sensor rich
46. Fault at vehicle anti-theft sytem OR
Fault at power steering switch
47. Problem at Electronic Control Module (ECM)
48. Misfire
49. Vacuum leak
50. N/A
51. PROM error
52. Problem at Electronic Control Module (ECM) -
Missing fuel calpac missing OR
Analog to digital converter error OR
Fault at quad driver module OR
Low voltage at oil temperature sensor
53. High voltage at battery OR
High voltage at exhaust gas recirculation valve OR
Voltage reference error OR
Problem at vehicle anti-theft system
54. Low voltage at fuel pump OR
Low voltage at Fuel pump relay OR
Output failure at quad driver module
55. Problem at Electronic Control Module (ECM) -
ECM failure OR
Serial bus error OR
Fuel lean malfunction
56. Low coolant or corrosivity OR
Fault in port throttle system vacuum sensor
57. N/A
58. Problem at vehicle anti-theft system
59-60. N/A
61. Oxygen sensor degraded OR
Port throttle system error OR
Cruise control problems
62. Gear switch input diagnostics OR
High voltage at oil temperature sensor OR
Fault in cruise control- vacuum solenoid circuit
63. High voltage at manifold absolute pressure sensor OR
Fault in exhaust gas recirculation valve OR
Fault at right oxygen sensor
64. Low voltage at manifold absolute pressure sensor OR
Fault in exhaust gas recirculation valve OR
Right oxygen sensor lean
65. Failure at exhaust gas recirculation valve OR
Faulure at injector peak/hold diagnostic OR
Right oxygen sensor rich OR
Fault at cruise control position sensor
66. Internal reset of Electronic Control Module (ECM)
67. Fault at cruise control switch
68. Fault at cruise control switch
69. Fault at air conditioner pressure switch
70-87. N/A
88. Internal reset of Electronic Control Module (ECM)
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Old 06-22-2005, 11:41 PM   #3
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Re: Have Ses Codes For 1991 Camaro, How Do I Know What They Mean

I see that you have given me much information that I can use. Like I said, the guys at Texaco Lube said one of them was a heat sensor that said "bank 1, sensor 1". Is that true or is the code definition he told me for something else? The reason I have a concern this applies to me is because my car's temp runs about 235-240 on the interstate or in the city with the air on. I think that is a little too hot....not running hot but just a little too hot for me. I have had the radiator flushed, new thermo, new hoses, new rad cap, new heater core put in. Just wondering if there is a possibility that one of the sensors could in fact mean that about the heat sensor, or if it means what you sent me in the first place. THANKS MAN! ANY HELP IS NEEDED AND APPREACIATED. IF YOU MAY KNOW WHY I AM RUNNIN A LITTLE HOT, GIVE ME YOUR BEST ADVICE. AGAIN, THANKS A MILLION! HOPE TO HEAR FROM YOU SOON.
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Old 06-23-2005, 07:31 AM   #4
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Re: Have Ses Codes For 1991 Camaro, How Do I Know What They Mean

Replace your plastic lower air dam. They usually get torn and beaten up over time. That will help with the high temps while driving. Make sure you have your fan shroud also.

Your single fan is controlled by a temp switch in the passenger side cylinder head between cylinders 6 & 8. I would replace it with a lower one like the hypertech one which comes on at 200 and off at 185. Change your thermostat to a 180 or 170 degree one also and it will help.
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Old 06-23-2005, 07:31 AM
 
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