Ignition Hassles
05-17-2006, 04:23 PM
#1
Ignition Hassles Read below for the full deal.
Year: 1994
Make: Pontiac
Model: Firebird
Engine: LT1 V8 5.7L
Transmission: M6
Symptoms: Car just started to have a "seizure" while I was driving. RPMs were not stable. Tach would bounce wildly up and down from 500 RPM to 5000 RPM. The engine sounded like it was missing. I was trying to get it home, and it was backfiring and all. I get the car into my driveway and its idling absolutely crazy. Missing, speeding up, popping. Finally it just died. When I went to restart it, the engine would roatate but would not start. I left the car for about 10 minutes. The car started right up with a very mild flucuation in the idle.
Codes (DTCs):
16 Ignition System Problem
Loss of Low Resolution Pulse Signal
36 Ignition System Problem
Loss of High Resolution Pulse Signal
42 Ignition System Problem
Electronic Spark Timing Is Grounded
84*Output Driver Module Fault
Skip Shift Circuit
*-The skip shift code has always been there since I have gotten the car. Skip Shift Eliminator.
Verdict: I'm 99% sure this is the 4th OptiSpark I will have to replace in this car. The engine has 148,000 miles on it and leaks oil like a siv. Most likely I will have to pull the engine and just rebuild it. But for now I just want peace of mind that it is the optispark. Any advice comments etc would be great. Thanks guys!
Year: 1994
Make: Pontiac
Model: Firebird
Engine: LT1 V8 5.7L
Transmission: M6
Symptoms: Car just started to have a "seizure" while I was driving. RPMs were not stable. Tach would bounce wildly up and down from 500 RPM to 5000 RPM. The engine sounded like it was missing. I was trying to get it home, and it was backfiring and all. I get the car into my driveway and its idling absolutely crazy. Missing, speeding up, popping. Finally it just died. When I went to restart it, the engine would roatate but would not start. I left the car for about 10 minutes. The car started right up with a very mild flucuation in the idle.
Codes (DTCs):
16 Ignition System Problem
Loss of Low Resolution Pulse Signal
36 Ignition System Problem
Loss of High Resolution Pulse Signal
42 Ignition System Problem
Electronic Spark Timing Is Grounded
84*Output Driver Module Fault
Skip Shift Circuit
*-The skip shift code has always been there since I have gotten the car. Skip Shift Eliminator.
Verdict: I'm 99% sure this is the 4th OptiSpark I will have to replace in this car. The engine has 148,000 miles on it and leaks oil like a siv. Most likely I will have to pull the engine and just rebuild it. But for now I just want peace of mind that it is the optispark. Any advice comments etc would be great. Thanks guys!
