Fluctuating Idle?
11-16-2017, 01:59 PM
#1
Registered User
Thread Starter
Fluctuating Idle?
Car runs perfect but tends to surge between 750~650rpms. The idle is set to 750rpm tuned on Uprev. Doesn't give me too much of a problem driving and no check engine light. Maybe I'm overlooking something. The last thing I touched was the intake. Besides that nothing has changed and the problem ONLY persist when the car is warmed up.
Couple things that I haven't tried:
1.Clean MAF sensor/Throttle body
2.Oil change and cleaning out VTC sensors and changing gaskets.
(Maintenance things)
3.Check for vacuum leaks. Not sure if this will randomly pop up but will try.
4.New coils? Spark plugs are fairly new (500 miles~)
Just out of ideas and like I said the car runs fine with no issues. Not sure if it's a misfire or something of the sort but certainly seems like one. Anyone ever have a similar issue and what worked out for you? I'm a busy guy working through the week but for now I'll just like some things maybe I can check until the weekend on my spare time.
Couple things that I haven't tried:
1.Clean MAF sensor/Throttle body
2.Oil change and cleaning out VTC sensors and changing gaskets.
(Maintenance things)
3.Check for vacuum leaks. Not sure if this will randomly pop up but will try.
4.New coils? Spark plugs are fairly new (500 miles~)
Just out of ideas and like I said the car runs fine with no issues. Not sure if it's a misfire or something of the sort but certainly seems like one. Anyone ever have a similar issue and what worked out for you? I'm a busy guy working through the week but for now I'll just like some things maybe I can check until the weekend on my spare time.
