Q: Check Engine Light is on - 2012 Nissan Xterra

asked by on

Hello my check engine light on my 2012 Nissan Xterra came on I had it diagnosed the code was an air flow sensor I replace the sensor but the light still comes on will the computer store the code until it's reset other than that truck runs fine
My car has an automatic transmission.

Anytime a code is stored, it will stay stored and the Check Engine Light will stay on until the ECM memory is cleared. If the problem is fixed, then the light and code should not come back. Many times a code is used to replace parts when the part is not the cause of the light coming on. The code is supposed to be used to diagnose the Check Engine Light and a pinpoint test of that code will isolate the real failure.

I recommend having a certified mechanic, such as one from YourMechanic, determine exactly why the Check Engine Light is on and provide suggestions for needed repairs that get to the bottom of the real issue with your car.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Check Engine Light is on - 2012 Nissan Xterra

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: Check Engine light comes on when cars RPMS go over 4000 error code P0344

Hi there. This code is for a bad camshaft sensor. It can be caused by a bad sensor or it can come from another issue. I usually check the sensor first and then I check the timing belt. Most of...

Q: High-pitched sounds and shuddering at the stop light, dash lights on

The problem is in the traction control system, which detected a fault and turned on the VSC and check engine light. You will need to have the system tested to see what codes were stored and then have them diagnosed...

Q: Want to disconnect the door chime plug

The door chime is a safety feature that is set from the factory for all vehicles. It tells us when the keys are in the ignition and provides a warning when the door is still open and the key is...

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 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.
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.