94 Firebird LT1 - keep having some issues with hesitation. Take a look at this pic of a scan. It hesitated around 500-520 seconds Would you say my left O2 Sensor is bad?

These files were from tonight from a "cold" start (its 97F here in Houston). I drove it a short distance. There at the end of the log it had the major hesitation, popping issue. Seems like the INT on...

EE hack

Here is the CSV

94 Firebird LT1 with basically a stock engine. I brought it back to life after sitting a long time. Basically, when accelerating from a stop, the engine misses badly. Give it more throttle and it...

Thanks all for the tips. I switched the O2 sensors around and saw the readings were the same so that indicates the O2 sensors were good. I am 99% sure its leaking fuel injectors. Sometimes it runs...

17546First off i am new to EFI, but been working on cars for 40+ years.

My 94 Firebird with LT1 is stock. Right now it has a major stumble when warm, no stumble when cold. So it seems to be worse...

Finally got in. Been working on cars all my life 40+ years. Just finally getting into EFI. Got a 94 Firebird with some problems :mad1:and hope to sort them out.

Thanks, Ken