mass airflow sensor
Race Director
Joined: Jun 2004
Posts: 13,960
Likes: 707
From: WI
Faulty MAF sensors will normally light the check engine light on the
drivers information center if the problem is constant and store a
trouble code. If intermittent, a trouble code will still be stored as
long as the battery is not disconnected.
Normally, the problem is a poor connection at the sensor and wiggling
the wires, unplugging and reinserting the connector will often cure the
problem.
A faulty MAF will normally cause a no start or difficult start condition
and although you can eventually get the car into the "limp-home" mode in most cases.
You can try tapping on the sensor to see if the idle changes, or unplug it and see if the car runs better. There is a MAF cleaner spray also. I had a MAF with a break in the wire, it was very hard to see. You can very gently push on the wire to see if there is break.
drivers information center if the problem is constant and store a
trouble code. If intermittent, a trouble code will still be stored as
long as the battery is not disconnected.
Normally, the problem is a poor connection at the sensor and wiggling
the wires, unplugging and reinserting the connector will often cure the
problem.
A faulty MAF will normally cause a no start or difficult start condition
and although you can eventually get the car into the "limp-home" mode in most cases.
You can try tapping on the sensor to see if the idle changes, or unplug it and see if the car runs better. There is a MAF cleaner spray also. I had a MAF with a break in the wire, it was very hard to see. You can very gently push on the wire to see if there is break.
Team Owner
Joined: Jan 2003
Posts: 20,315
Likes: 245
From: Summerland B.C. Canada
