Here what I need help with.would cause the car to start running very rich???
yes the car is turbo has greddy kit with e mang upgrade with 440cc injectors Also has dw200 fuel pump, aem fuel rail ,ngk one step cooler plugs throttle body spacer , lite weight crank pulley, full 2.5 in exhaust w greddy evo2 back half.i haven't had it tuned yet still running the greddy base map and it has ran fine for a long time.

 

Check your plugs to see if they're fouled? O2 sensor? Smoke out the tailpipe? Also double check your maps to be sure.

 

I have just about check and recheck every thing on the car.when I pulled the old plug they where black and smelled like fuel so I replaced the plug but not the o2 sensor yet but plan to. I drove it to day for a litte cruse it drove ok didn't get on to much yet.

 

Usually o2 sensor will throw a cel if it's problematic. You can check with scan tool to see voltage readouts and compare with normal operating values. Check both primary and secondary.

 

I haven't had a cel light yet