Questions & Answers for: Pontiac iac sensor Cars & Trucks

...rpm, cutting off once in a while. idle okay at 1500 and up. changed O2 sensor, coil packs, plugs, fuel filter and hoses that had leaks. still has same problem. check the IAC sensor, might be ...

when I accelarate the car misses looses its idle wants to cut off. spark plugs. wires, mass air flow sensor, iac new. Maybe the Throttle position sensor or timing off.

...sensor voltage is between 0.20-0.74), the PCM senses a near stall condition. The PCM will then calculate a new IAC pintle position to prevent stalls. If the IAC valve is disconnected and reconnected ...

sensor. See if either one is going bad. Try cleaning the MAF with MAF cleaner or replace it if it's bad. It's usually a process of elimination with cleaning the IAC, MAF or even seafoaming the intake.

...iac and the throttle postions sensor can you help me i also the o2 sensor Sounds like a weak fuel pump.Check fuel pressure it should be 48-55 psi with key on engine off.If its not within these specs ...

...sensor and IAC valve can be cleaned. The mass air flow sensor is another problem area. Careful with that unit, it can only be cleaned with mass air flow cleaner, read-up and follow direction for that ...

rpms jump up down Can be a problem of : 1) MAF sensor. 2) IAC valve sensor. 3) TP sensor. 4) Engine Control Unit Consult a mechanic .

...sensor. I replaced it and then a few days latter the same problem, stalled at stops sometimes. I then replaced Map, IAC,Crank sensors also Fuel filter. Cleaned Throttle Body inspected wires , Vacuum ...

...sensor, IAC sensor. If RPMs vary even while idling, sounds like mass airflow sensor is bad, but there are various things that can cause the rpm to be inconsistent. Vacuum leak, idle control valve, ...

...sensor and cleaned the throttle body now the RPM is up to 2500. The error code is P0507. How can I reset the RPM? I expect the IAC (idle air control motor) is not working - either a fault with it or ...