Skip the auto shop - Our mechanics make house calls

Q: Check Engine Light stays on with P0101 code. Has been reset several times in the last 1 1/2 years.

asked by on

MAF sensor has been cleaned with special MAF sensor cleaner to no avail. Unplugging and replugging connector does not help.

My car has 120000 miles.
My car has an automatic transmission.

A: The P0101 code may be related to many other...

The P0101 code may be related to many other things aside from the mass air flow sensor such as: intake air leaks, dirty mass air filter, an open or shorted MAF sensor harness, or a poor connection involved with the MAF. If you want to have a definitive repair on this, a certified professional from YourMechanic can throughly pinpoint the cause of the code and perform appropriate 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: P0101 Still shows after MAF replacement.

You are correct, there is a TSB to reprogram the ECU for the symptoms you describe. The reprogramming should take care of your concern of the P0101 code. You will need to go to a Nissan dealer to have the...

Q: My car is overheating and leaking from somewhere - 2005 Nissan Altima

Hello. You may have a leaking water pump or cooling fans that are not working. I recommend having the cooling system performance tested and pressure tested by a qualified mechanic. Since it is overheating already, you may have blown a...

Q: My car over heats now and then took it to garage they said they can't find nothing wrong I no my car to well light and chimes come

One of the more common reasons that newer vehicles like your 2011 Avenger will overheat occasionally is due to a damaged or faulty coolant temperature sensor. This is located on the top of the radiator and is designed to monitor...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...
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.