i installed gm 42# injectors. along with zzp 3" pulley and hub. now i have a CEL light on and had an appointment at gm today for a antenna bracket that was broke. the foound out about the stuff i did to it and said w/e they usually do. but neway. they said that the light is on because the injectors are not getting enough fuel or that is at least what the pcm is thinking. but i got the pcm from zzp and had it tuned to the 42 pound injectors. so basically im running realy lean and its trying to give it more fuel. so do you guys have anythning i can do to correct this and get rid of the light? THanks

 

Disconnect your battery for 10 to 20 min to reset the fuel tables(I think thats what there called) and reset the code and see what happens.

 

could be the zzp tune didn't take into account the exhaust and airbox mod. MAF calibrating may be off? Just a guess though...

 

Get a hold of zzp and it says on there web site that they will help you with tweaking the tune for you.

 

yup sounds like a MAF calibration issue, which a dealer most likely wont help you with they will simply tell you to remove the aftermarket parts or blame them