Skip the auto shop - Our mechanics make house calls

Q: Rough idling when the MAF is plugged in

asked by on

When the MAF is plugged in, there is a very rough idling in my car and it wants to stall. But when it is unplugged, it runs great. The plugs and the ignition solenoids have been replaced and several other parts, but the car still idles badly. What do you suggest that I do to fix this?

A: If the problem is present when the MAF sens...

If the problem is present when the MAF sensor is plugged in, this is a classic sign something may be going on with the MAF sensor. Many other things can cause a vehicle to idle poorly as well though. The most likely would be the MAF, the idle air control valve, a vacuum leak, or an oxygen sensor. If you need help, a certified technician, such as one from YourMechanic, will be able to diagnose the rough idling issue and help you get back on the road safely.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: The car occasionally idles high until it stalls

It sounds like this is an intermittent issue. These are generally the hardest to diagnose because they are just infrequent enough to not trip the ECU into triggering a code, but they still have a fault somewhere. The most common...

Q: Wondering condition on a road test.

Hi there. If you are road testing a vehicle to buy, you will want to make sure that the vehicle is safe for road operation. During a road test, if the vehicle is wondering around, there could be multiple things...

Q: Air conditioning leaking inside car

Hello. The evaporator tube is clogged or the evaporator itself is clogged up, which would cause it to leak. Usually the evaporator tube can be unclogged and that solves the problem. If that doesn't solve the problem, the evaporator itself...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.