Was driving around earlier with my boosted D16z6 and its been fine lately besides the over heating pushing coolant deal will fix that soon.. But now i got the code 15 car runs and all its just when i hit boost and get to 4K-5k it feels like its misfiring. No power.. But up untill that rpm its fine.. So you guys think its the coil in side the z6 dizzy or some thing else..

 

im not sure what it is but it sounds like its the head gasket cuz if it is overheating that means that water is passing through and getting into the pistons, not sure just taking a guess!

 

get a new dizzy!

 

I dont know why you even respond.. the problem is the dizzy not the head gasket thats a whole diff deal that you newb dont understand.... Im not getting a new dizzy i want to repair fix mine old one..

 

replace the icm

 

are you sure that you have a code 15 and not a code 1 along with code 5? it sounds to me like you have a MAP sensor problem under boost, which would be a code 5

 

no its not gm 3bar is new and it is a long one and then quick 5 so its 15 ive done this many times.. Before i figured out about the code i tought it was a spark plug cable that came of the cap but no... So i knew it was ignition it was like a miss fire.. Car was professionally tuned by the best in the midwest...