Hello, i hope someone can help me out.
I have Lancer Evo 3 SOHC 4G92 engine.
When i start my car it will idle fine, but after 20-30 seconds, rpm repeatedly drops near to zero and back to normal again (fluctuating).
I have replaced the ISC with new one.
I try to unplug the iat, maf and barometric sensor (7 pins), idle is fine no fluctuation but the accelerate poorly.
For sure, do i have to replace the maf sensor??
Thanks...