Skip the auto shop - Our mechanics make house calls

Q: Stalling when idling down

asked by on

My car started to stall as it idled down. I put in new plugs, wires, distributor cap and rotor, fuel filter and the Idle Air Control. I cleaned the throttle body with carburetor cleaner and checked for vacuum leaks. There were no leaks. My Tempo ran much better, but it still died on me when it idled down after warming up the engine. It wouldn’t stall while idling in park and first gear though. So I disconnected the battery to reset the computer, and it ran perfectly for 30 minutes. Then later on I did another 20 minute drive, and it died, but it started right back up. Then stalled again right away. Do you know what’s going on? Thanks.

A: Disconnecting the battery allowed the engin...

Disconnecting the battery allowed the engine management system to "reset" to initial factory settings. Driving it allows engine management to "adjust" to components that may not be functioning at their best: such as the mass air flow sensor, oxygen sensor, etc. There are, however, limits to how much the engine management can adjust to out-of-spec components. I would check the mass air flow sensor first, clean it if possible, then check for proper voltage readings. Replace it if it's out of spec. A certified professional from YourMechanic can come to your car's location to diagnose the stalling issue and perform the correct repairs.

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・Save up to 30%

Get a quote

What others are asking

Q: There is a strange slip in the engine

This may be a sign of a failing throttle position sensor. The throttle position sensor (TPS) is a sensor used to monitor the throttle position of a vehicle. The sensor is usually located on the butterfly spindle/shaft so that it...

Q: Whilst driving the car will cut out. In the begining it would start immediatetly now if it cuts out it doesnt want to start

Hello. I would need to know the model of your Toyota to be able to give you the best information. From what you are telling me though it sounds like the crank sensor harness may be damaged or that one...

Q: Engine starts to rev up on its own

You may be having a problem with the throttle position sensor or throttle pedal sensor. Have the system scanned to see if any problems or codes are for the throttle position. Also, make sure the floor mat or carpet is...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.