Roblen91GTA

Hello, need some help with my 91 GTA Tpi 350 i was pulling it out Sunday morning for cars and coffee it started normal and was idling normal outside warming up and i got out to close my garage when i hear the fan loudly click on and it start to run very rough. I jump in to limp it into the garage and shut it off also the engine light came on (never came on before), it was stumbling bad pulling in.
I go to jump the connector to pull codes and the car didn’t even flash code 12 just a solid engine light BUT the electric fans were on with the key on RUN and it never did that obviously.
Ive had the car for almost a decade and never had a problem this bad. The car is all original and unmolested to rule out any whacked out wires

Tuned Performance

iTrader: (92)

Sounds like a bad ecm, if you tap on the ecm case does this change how it runs ?
If you need a ecm let me know I have a few for sale .

Roblen91GTA

I’ll definitely try that after work today see what happens. How much do you want for your Ecm’s? Thanks for the reply too

Tuned Performance

iTrader: (92)

$65 shipped for a ecm

Roblen91GTA

Sounds good, I’ll report back how the tap test goes. Are the Ecms tested or known to work?

Tuned Performance

iTrader: (92)

They are untested but if it’s bad I’ll refund you. The fact the fan is running sounds like it’s bad.

Roblen91GTA

Cool I appreciate that. Yeah I figured the fan running was a give away, plus not flashing any codes with the engine light on

Roblen91GTA

So I tried to tap on it while the car was running and there was no change, i reset the battery to see if that would help it flash any codes and still nothing and not even a code 12, definitely a bad misfire to it and smell the sloppy running

Tuned Performance

iTrader: (92)

Bummer , Sent you a pm

Roblen91GTA

Problem solved...was the ECM