I have a 09 SS with 3" catless down pipe an upper charge pipe. Lately it's been backfiring and sputtering past half throttle. I was running it with no o2 and a fried MAP sensor. The o2 is in now and the new MAP is in as well. Any ideas as to whats going on?!?!

 

Reset the ECU by pulling the battery connection for 10 minutes.

 

Thanks! Have you experienced this before? I did have a misfire on cylinder 1. Cleared the code and hasn't come back. I dont kno if that changes anything or not.

 

Misfires can be caused by rich conditions, which might have been because you were running around without an O2 sensor. Don't do that, btw.

 

lol yeah learnt my lesson!

 

Disconnected battery, still same thing happens. I'm guessing spark plugs?

 

If it was plugs you'd get huge missfire at wot, have you had a lot of rain lately? Or humidity my car runs like a bag when its 100 out

 

ur just slow and need a 100 shot ;-)

 

Plugs are probably trashed by now.

 

Got boost 17 got worked by a g6 gxp

 

^^^is it working right?? If not you should find your issue before you start getting deep into the throttle. If it is working then good deal

 

You got walked by a G6 GXP?

 

yea wtf?

 

haha who u kidding, i talked to the driver of the gxp, he said he walked u, i run the streets around here ****, u know me, btw if u want that downpipe out keep it up lol

 

im sure its the plugs, will check this weekend