anyone elses cobalt smoke like a deisel truck...mines getting way to much fuel i think and gm tells me thats normal...any suggestions?

 

Is it just black smoke coming out the exhaust?

 

If it's black smoke, your running rich....intake and catback should clean that up a bit

 

allready have aem cia and megnaflow catback....smokes black ready bad ...cold or hot..dont matter...it really sucks cuz it covers my back bumper after every wash...remindes me of a desiel jetta ...red car with a black bumper

 

I had this problem and Lucas Fuel Injector cleaner works like a champ for a few thousand miles..



It's a very small bottle but very potient. Also, buy a better set of spark plugs, it will burn gas more effiencent without the problem of running super rich.

 

Get your ECM reflashed at the dealer