• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

rough idle when warm

rah575554eg

rah575554eg

New member
Yesterday I noticed my 03 gtp was idling really bad after getting home from driving on the highway. I am thinking it might be the iac but not sure. Also I am getting horrible gas mileage in town around 11 MPG. I've replaced the fp, fpr and fuel filter no change. I'm am not getting a ses light either and noticed after changing the plugs that only two cylinders the plugs were really black. Bad injectors?
 


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