mercedez

Clean IAC and throttle body.

FredP

ok so where is the iac and fpr loctaed and how would you check for vac leaks my car has the same exact problem

mjr46

well I agree with cleaning the IAC part but the oil from the egr??? wtf??.. do you know what the egr is and does ??? your not gonna get oil from the egr.. it is exhaust gas recirculation and does just that to quench the cylinder chamber temps to lower NOX/ emmissions.... now carbon build up does occur on the pintle of the valve but not oil

mjr46

Iac is on the throttle body and fpr is on the passanger side fuel rail towards rear and has a vaccum line on it and checking for vaccum leaks you can use a can of carb cleaner and sparay all hoses and listen for an idle change and that'll indicate a leak

Pluto

I have been having stalling problems off & on. We have changed out sparks + wires, Fuel filter & ignition module. Saw your refrences to MAF, IAC & FPR. What are these things in simple English & how does one clean, and/or check them?

Thank you,

Michael A. Johnston

manicsmokey

MAF= Mass Airflow Sensor IAC= Idle Air Control Valve FPR= Fuel Pressure Regulator