in need of some $.02

[timninja]

So recently when I get in 3-4k rmp my m20b27 slightly spits and sputters.
I've only done 1 thing that I think might cause this and that was cleaning my icv with fuel injector cleaner.
So I'm asking if an idle control vlave could cause that,or if it's something like a fuel deal im really unsure how to troubleshoot this one
Thanks rev
Tim

[Bimmerguy91]

I doubt the ICV would cause that. The idle control valves does what the name implies controls the idle. Once you are going its not really doing much. More likely a miss. Check your plugs, wires, and distributor. Also try running some fuel system cleaner through the car.

[Mr. Tasty]

fuel pump. fuel pressure regulator, fuel filter.


dude, the icv is for air, not fuel... I really hope you blew air through that icv before putting it back on and starting the car.

[straight6pwr]

many, many, MANY things can be the cause of hesitation for m20 motors. honestly, you could throw parts at it all day and not fix it, so i say take it to a mechanic and pay him the diagnostic cost so he can tell you whats wrong. at a minimum he could tell you which system is the stem (fuel, air, or spark) and you could go from there.

[timninja]

I have spark,I have fuel I think I've put off a valve adjustment for to long and wore a lobe because once its warm It goes away,
And i didnt blow air threw the icv,I didn't put that much in there I didn't want to destroy the internal plunger