Skip the auto shop - Our mechanics make house calls

Q: Fuel injector not working

asked by on

One of my fuel injectors is not functioning properly, and the car also misfires.

A: The fuel injectors on the engine get power ...

The fuel injectors on the engine get power at all times from a common source, and the ground side is through the engine computer. The injector may be bad, or the engine computer’s internal injector driver burned-out and the computer needs to be replaced. I recommend having a mechanic, like one from YourMechanic, discover which component has failed by determining the source and cause of your misfiring engine.

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: Engine shakes intermittently after warmed up with car in "drive" at a stop. Single shakes at a time.

Hi there. There could be an issue with the fuel system or with the ignition system on your vehicle. It seems that the engine is having a minor misfire. Check the spark plug wires and see if any of them...

Q: dead battery plus jerking

Hi there. If the alternator is not charging the battery and not providing enough voltage into the system then you will get this jerking. If there is not enough power in the system, then the computer will have trouble shifting...

Q: Starts then stalls.

Hi there. Check the fuel pump relay and see if its working. If the fuel pump relay is getting hot, it will cut off and causing the fuel pump to shut off when the engine is running. This will cause...

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...
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...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...