loweredCL

iTrader: (1)

Hello all,

Have had an issue for a little while and have not been able to figure it out. The issue is when I'm at low rpm, between 2000 and 2600rpm, it will surge until I give it more gas then it goes back to normal. I have only noticed it when the car is cold/cool. I was informed to clean the throttle body, which I did though it was pretty clean. Anyone have any other ideas? Thanks in advance.

cls6life

Clean your idle air control valve. If this doesn't correct the issue, try resetting your ecu. I hope this helps!

maximaorg

Could be a faulty IAC valve

loweredCL

iTrader: (1)

Thanks for your input. I don't think it could be only because my idle is fine. It sits about 750 and does not vary. From what I read about the IAC valve, if it was an issue, my RPM's would change, mostly higher and I could get an light.engine light. The only time it seems to happen is when the engine is still cold/cool and I'm at between 2200 and 2500 RPM. Strange, I know.

CL-S24

Mine surged at highway speeds for a while (a couple years). I could never figure out what it was.

Could be unrelated, but my tranny ended up dying (original at 273k). Replaced it with AV6. No surging since.