Hey all; I have a 1988 Camaro SC with a 1986 IROC Z engine,
vin F LB9 TPI 305. It's been running rich lately and I've been going through certain diagnostics and fixes and none seem to be working. So I figured I'd move onto the ECM and PROM next.

If you were to analyze my receipts for work done to the car by the previous owner, you will see that the ECM and engine were bought at the same engine place, but on different days. This makes me suspect that PERHAPS the previous owner who dropped the LB9 into my car may have been sold the wrong ECM and/or PROM. It could be possible he was given an ECM and PROM for a 350, which would explain why so much fuel is getting dumped into my engine, because a 305 is set up for 19 lbs/hour, and a 350 injects at 22lbs/hour.

So I need help in identifying my ECM and PROM to determine what they were set up for. Is there any codes I could use to see if they're from a 350 perhaps, or for the wrong engine?

Any help is appreciated on this one folks.

Kev

 

You can call Fuel Injected Systems (210) 654-0774 out of San Antonio Texas and they will tell you all you have to know. They helped me a lot with that too.

David