Question about 2003 Chevrolet Silverado 2500HD
The most likely solution is to preform a crank relearn this must be done with a good scan tool such as snap on modis/solus OTC genisis or GM tech 2 a cheap scan tool CAN NOT preform this function. A crank relearn will renew the relationship with the computer and crank position sensor
Posted on Aug 06, 2012
I have the same problem. I just ignore it.
Posted on Aug 15, 2010
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Posted on Jan 02, 2017
The MAF (Mass Air Flow) sensor is a very common problem with these along with the pickups. This isn't what you would call an inexpensive part. Definitely do some shopping before you buy one.
Posted on Nov 10, 2008
Check the wire leads and clean them before reconnecting the wire leads. It wouldn't hurt also to clean the MAF sensor with MAF cleaner, the code your getting is most common to the high performance oil base filters like K&N.
Good luck and this should help you resolve your MAF issues. Thank you for using Fixya
Posted on Mar 12, 2010
The MAF sensor (Mass Air Flow) is located in in the air induction system usually just after the air filter and before the throttle body, and the ECM (Engine Control Module) uses the signal generated from the MAF sensor to determine how much fuel the engine receives. However, before you replace the MAF sensor you should be certain that there are no air or vacuum leaks in the air induction system especially between the throttle body and the MAF sensor, and also that all of the hose clamps are all good and tight on the air induction boot especially between the throttle body and the MAF sensor, and check if the air flow is being restricted from the air cleaner side of the MAF. (check the air filter and check the air intake to the air cleaner for any obstructions that might be restricting the air flow to the MAF)
You can also clean the MAF sensor with carburetor spray because they build up a very fine dust on the air velocity sensors that are mounted on wires that are suspended in the air stream to monitor and determine the amount of air flow into the engine, and when the MAF sensor becomes dirty the MAF sensor will loose performance. Be very careful when cleaning the air velocity sensors inside of the MAF sensor because they are very delicte and are easily damaged, and do not touch them with anything other than the spray from the carburetor can and that is all that is necessary to clean the air velocity sensors. Here are some images that I have put together to assist you.
Posted on Jun 22, 2010
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