Q: P0101 Still shows after MAF replacement.

asked by on

Received a P0101 on my Nissan Altima and brought it in to the mechanics. They replaced my MAF sensor and the check engine light was turned off. After about a week, the engine light is back on and fuel efficiently is noticeably impacted. I believe there is a TSB to have ECU rebooted. Could not resetting ECU be a reason why my fuel efficiency is impacted or could there be another issue at hand?

My car has 47000 miles.
My car has an automatic transmission.

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 ECU re-programmed.

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. P0101 Still shows after MAF replacement.

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: Car jumped and died

The P0101 code is a code for the Mass airflow meter, the P0171 is a 'too lean bank 1' and the other code you have, you are saying, is for a 'too lean bank 2'. This means either the air...

Q: Q: AC not working properly

Hello, the refrigerant system needs checked for leaks. The belt attached to the compressor should be checked to make sure the compressor clutch engages even if only for second. If all that is good then a set of gauges need...

Q: OD2 scanner read trouble code P0101

Your computer may not be able to correctly interpret the data from the mass airflow sensor on your engine causing the P0101 code to keep returning. The manufacturer has a Technical Service Bulletin that came out January 30th of 2015....

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...
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...
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.