[hasuka]

hi guys


I have an idle problem. When I depress the clutch while changing gear or approaching the lights, the idle speed drops by 400 RPM and then it rolls up.
What I've done so far to fix this.

*spark plugs changed
*throttle body cleaned
*Pcv valve changed
*Throttle adaptation done 3 4 times
then i tried another throttle, still didn't work.
*maf sensor cleaned
*map sensor cleaned
*ignition coils changed

but i still have the same problem.I'm waiting for help if anyone can help thank you.
my car is european version with engine code r18a2
sorry for my bad english i use google translate

 

[07civicEXcoupe1.8L]

Any OBD codes?

 

[07civicEXcoupe1.8L]

Check your fuel pressure also look at the fuel pressure regulator. Scan the OBD to see what the codes are.

 

[Chaos Pilot]

Idle Air Control Valve very likely...