my car's rpm fluctuates on idle between 0.3k-1k. engine makes extra noise
Asked by HassanCh Dec 11, 2014 at 01:53 PM about the 2008 Toyota Corolla
Question type: Maintenance & Repair
hi friends, i have corolla 2008. my car's rpm fluctuates on idle between 0.3k-1k. engine
makes extra noise. sluggish when going above 40km/h in 2nd gear . low pick and low
power. changed plugs, throttle body cleaning but same problem exists and their is no
engine check light on running engine. what is the possible problem?
5 Answers
Did you also clean your IAC? (Idle Air Control Valve) If so and no results, you may need to replace it. Here's a short video: https://www.youtube.com/watch?v=mfauGoGXCmo
didn't clean IAC. but if there was a problem with IAC the chec engine light should glow?
I don't think I've ever run across an IAC code. It's easy to clean. https://www.youtube.com/watch?v=C419kwrH0vE ttps://www.youtube.com/watch?v=ez5ykPAMG8k
http://www.obd-codes.com/p0505 ..P0505 is IAC
My Toyota Corolla 2016 my rpm up and down while driving no DTC found...