Skip the auto shop - Our mechanics make house calls

Q: P0231 code coming on - reduced RPM and trembling with the AC on

asked by on

رجفة مع الAc تنخفض سرعة Rpm

Translation: Trembling with the AC and reduced speed Rpm

My car has 231500 miles.
My car has a manual transmission.

A: Diagnostic Trouble Code P0231 relates to a ...

Diagnostic Trouble Code P0231 relates to a problem with the wiring in the fuel pump circuit, although it is also possible to have a faulty fuel pump that draws too much current and creates a voltage drop in the circuit. Possible causes of code P0231 include a blown fuel pump fuse due to a short to ground, an open in the feedback circuit, loose, damaged or chafing wiring or terminal connections, and/or a bad fuel pump relay. You will want to have a certified mechanic test the fuel system thoroughly so that this code can be properly repaired.

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

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: Car only clicking and not starting

It appears that you have been trying to resolve the starting issue with your Honda Civic but have not been able to resolve the issue on your own just yet. The symptoms you describe lead me to believe that your...

Q: I have a problem with my instrument cluster back lighting.

There is a function on your vehicle where you can change the intensity of the backlight on the instrument cluster. There may be a problem in the circuit at the rheostat that controls the dimming of the backlighting or the...

Q: Erratic RPMs, 1995 BMW 318is

Hello there, there are a few possible causes for your 1995 BMW 318is to have a fluctuation in the RPM's. The most common are a vacuum leak, oxygen sensor, throttle sensor, exhaust leak, or the fuel pump. I recommend have...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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.