I turbo charged my 2.4l cobalt ss and it works great but sometimes it will.go to engine power reduced and run like crap.and get no turbo boost... What is up with that and what do I do for it to stop

Electrical issue along with a bad tune will do that

Even tho the pcm was flashed from the company that I got my turbo Kit from with there 1.0 file that is matched for the Kit I got on

zzp isn't perfect. canned tunes suck

Oh ok. Because the HP tuners is like 500 bucks and was hoping i.didn't need that, ppl.say it may be the mass air flow sensor

did you try calling zzp?

They said they need engine codes but I cleared it because the car didn't want to drive on the reduced and I needed to get to work so I need to wait for the check engine to come back

In the end you are going to want a professional tune. I would just get the hp now.

Alright

I've heard of a lot of people with MAF sensors going haywire because of the proximity to other tubing. Moved it and car ran much better. I'll see if I cant find that thread, it was just up this last week.

---------- Post added at 10:32 AM ---------- Previous post was at 10:28 AM ----------

https://www.yourcobalt.com/forums/eng...ing-tunes.html

Maybe bully can help ya.