My 2006 cobalt ss has an unknown tune an it misfires over half throttle or 20kpa boos
#1
New Member
Thread Starter
Join Date: 04-21-19
Location: Baie ste anne
Posts: 6
Likes: 0
Received 0 Likes
on
0 Posts
My 2006 cobalt ss has an unknown tune an it misfires over half throttle or 20kpa boos
Hey guys i have a supercharged cobalt with the 2.0 engine in it. I bought it off someone and it misfires when i step on it over half throttle or if the boost goes over 20kpa. I just put 4 new plugs in them and when i tried it out the misfire was gone and i took off like a jet down the road. But after i stopped and took off again it gave to much fuel or air again and fouled the brand new plugs right away. Does anyone know what i should try next? Thanks in advance!
#4
Senior Member
If you're running super rich, then it might be something with the tunes fuel calibration or you have a mechanical problem that caused the tune to become rich. You'll need to see what your AFR is doing with a wideband air fuel meter to see if you need to make adjustments. For now you'll need to check for mechanical problems between the air filter and muffler.
Thread
Thread Starter
Forum
Replies
Last Post
Zackmanuel88
Problems/Service/Maintenance
0
04-22-2019 01:53 PM
horsinround1974s
Problems/Service/Maintenance
4
10-23-2015 07:41 PM