Thread: SS M90 Question...

Originally Posted by FoSHO99

Well the engine goes into closed loop 30-60 sec after startup. But you are scanning, what does the 02's read? It might read or stay at a constant number if it was bad.

Not necessarily saying the intense tune is junk, somethings not right. It seems like its dumping way too much fuel. Where did you get this pcm from? Directly from intense? What year was it for? What year of maf are you using?

I'll have to read the O2 reading tomorrow. What should it be, approximately?

I got the PCM directly from Intense. He asked what I was doing and what mods I had done. I told him everything I was doing to it. It's for a 2001 Grand Prix GT. The MAF sensor in my car is stock, I haven't changed it.

I have no vacuum leaks. I am out of ideas. I've tried everything I can think of.

What if I hooked up my GT PCM? Would it run really lean because it isn't tuned for the bigger injectors?