Supercharged 2.2 misfires - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
Problems and Service Talk about any mechanical problems you are having

 
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 09-11-2019, 02:17 AM Thread Starter
Newcomer
 
kinecty's Avatar
 
Join Date: Jan 2018
Location: Ontario Canada
Posts: 4
I have a supercharged 2.2L cobalt LT, got the kit through zzp but after installing zzp wasn't able to tune my car. Went to a few other reputable tuners and had them all with their heads scratching. The car tunes fine but just doesn't run fine. Every tuner who has looked at the car says it should be working but that they can't figure out why it doesn't and have confirmed it's almost definitely not a mechanical problem.
It's mos prominent (Auto) in 4th gear cruising on the highway if you start to lay into the throttle you get a very violent rapid misfire and the car won't accelerate. Really friggin annoying when I can't get up a hill half the time. I'm daily driving this thing 300km a day for work for about 6 weeks now.
A few of the tuners suspected a maf problem but it was ruled out by the fact that if you force the car to downshift a few times then it runs fine and revs out no problem. It's only at low rpm high load, which is where an auto spends 90% of its time...
Any help is appreciated. Pretty much ready to put this thing back to stock, sell off the parts and scrap it..

Last edited by kinecty; 09-11-2019 at 04:00 AM.
kinecty is offline  
Sponsored Links
Advertisement
 
post #2 of 2 (permalink) Old 09-11-2019, 03:33 PM
Forum Regular
 
Join Date: Mar 2017
Posts: 60
pm - visitor message

Last edited by TCSS07; 09-11-2019 at 03:38 PM.
TCSS07 is offline  
Sponsored Links
Advertisement
 
Reply

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome