Skip the auto shop - Our mechanics make house calls

Q: Missing in the beginning & RPM cutoff at 3000

asked by on

hi..when starting the car there is engine missing & when RPM reach to 3 it will cutoff util the rpm return to below 2800 it will continue& engine light is on though i changed fuel filter & spark plug...& i am driving my car daily but RPM must not reach to 3 Note(when i cleaned Air Sensor there was no missing & i was driving with RPM above 3 it was ok..but unfortunitly the same problem returned after driving by 20minutes)

My car has 320000 miles.
My car has a manual transmission.

A: Hi and thanks for contacting YourMechanic. ...

Hi and thanks for contacting YourMechanic. If the engine is misfiring and you cleaned the air sensor, I think you mean Mass Airflow (MAF) sensor, then the problem lies within the sensor. Replace the MAF and recheck for the conditions that you are having. The rpm's won't go above 3,000 for the computer has the engine in limp mode. For the computer to go into limp mode, a sensor has tripped or failed. If you need further assistance diagnosing your vehicle, then seek out a professional, such as one from YourMechanic, to assess your misfire condition.

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: Reinstalling fuel pump back into tank

If you are not using an OEM, dealer supplied gasket, but rather an aftermarket supplied gasket, that could cause this problem. The gasket you have may simply be too thick. Even if the gaskets are of the same thickness, there...

Q: Cooling fan won't stop running.

Hi there. The cooling system can leak from so many different spots that it can be hard to diagnose. If the problem occurred right after the thermostat and gasket were replaced then the work may not have be performed properly....

Q: Car suddenly stops accelerating.

This may be related to a faulty throttle position sensor or potentially a dirty or failing mass air flow sensor. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed...

Related articles

How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...
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.