kujo1963

so i have a 98 c5 i installed shorty headers xpipe cold air intake and slp exhaust i had stock air cleaner at first with no check engine lights on i just installed the blackwing air cleaner now i have a check engine light on i checked all the clamp for leaks checked the hoses no bends i even reset all the codes will i need a dyno ?

Jurgen1

whats the code

Bill Curlee

Post the DTCs and all the related letter info P-XXXX C/H

kujo1963

10 PCM 3 codes. I couldnt get to the code, but I will try. Im trying to figure out how now.

Smoken1

Here is how to use ALL the buttons on the DIC
Read this pdf.