86 Gt Not Idling Or Running Good?

Pugman1212 said:

Posted a week ago changed blower pulley and added a intercooler. Car went from great to down right awful. Won't idle and spits and stutters constantly runs a little better when mass air sensor is disconnected. The guy who helped me do all this thinks mass air should be on the blow through side not the intake (suck) side. He thinks it has to far to travel from mass air sensor to throttle bodie. Causing computer to screw up. What do you guys think... I have a pro-m 75mm bullet.

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Your buddy is incorrect. I run a Kenne Bell with the meter on the inlet side. It's WAY far away from the blower exhaust that gets firs directly into the lower plenum.

If it was running well at one time then you need to look at anything and everything that you've touched since then. Then start looking for vacuum leaks and pressure leaks (these can spring up pretty easily as you get a blower setup worked out). Pull codes for clues.

Provide as much information as you can:

What the fuel pressure at idle, part power, and boost
What are your AFR readings
What codes does the EEC spit out