JoshMcMadMac
Dedicated LVC Member
I have noticed that the LS will get a "lopey" idle to it sometimes. It seems more prominent in mild temperatures (not so much in the cold) and more so when the car has not warmed up. It is only rough at idle; a slight raise of the RPM to ~800 or so while holding the brake completely smooths it out. It also seems to be intermittent, as sometimes the idle is fine. I honestly do not have much opportunity to notice it, as very little of my driving has be stopped and idling.
It is not the coils, as they were replaced with no impact on the strange idle. Spark plugs were replaced with the coils. MAF sensor was cleaned recently as well, and the engine was Seamfoamed just prior to that...none of which helped. There are no codes, the car runs great, and fuel economy seems to be where it should be for my driving and commute (low 20's). Any ideas what it could be?
It is not the coils, as they were replaced with no impact on the strange idle. Spark plugs were replaced with the coils. MAF sensor was cleaned recently as well, and the engine was Seamfoamed just prior to that...none of which helped. There are no codes, the car runs great, and fuel economy seems to be where it should be for my driving and commute (low 20's). Any ideas what it could be?