L G T Posted September 28, 2011 Share Posted September 28, 2011 Check engine light is on and OBD says all 4 cylinders are miss firing. The car runs great but you can hear the miss fire at idle when your behind the car. Any idea's what are wrong? Splugs are new coil pack has 45k miles iac valve is clean Link to comment Share on other sites More sharing options...
KCwagon Posted September 28, 2011 Share Posted September 28, 2011 If it is all 4 cylinders, then I would look at fueling as an issue. Here are some things to check. 1) FPR (fuel pressure regulator) 2) fuel pump 3) filter - if applicable Link to comment Share on other sites More sharing options...
L G T Posted September 28, 2011 Author Share Posted September 28, 2011 If it is all 4 cylinders, then I would look at fueling as an issue. Here are some things to check. 1) FPR (fuel pressure regulator) 2) fuel pump 3) filter - if applicable Do you think a good clean with sea foam will help? Link to comment Share on other sites More sharing options...
KCwagon Posted September 28, 2011 Share Posted September 28, 2011 Do you think a good clean with sea foam will help? I doubt it. I would look towards something mechanical such as the FPR. Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.