P0101 Error Code

I have a 99 K1500 suburban that has been giving me lots of trouble. I have replaced the camshaft and crankshaft position sensors, a catalytic converter, and rear oxygen sensors. Now I have a P0101 error code. Other
than the actual MAF sensor, what do I need to look for with this code or do I automatically replace the sensor? Thanks.
Mike D.
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On Sun, 14 Feb 2010 14:44:52 -0800, Bill wrote:

I already went through that page and nothing. 3 mechanics mentioned the vacuum leak, but wd40 showed no leaks. Wiring has not changed. This problem has been a long time in developing, with backfiring, lack of power, hesitation, feels like the ignition is intermittently dying, etc., but I had no error code until today.
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Michael Dobony wrote:

Well first thing to do is make SURE that the air intake is clean, that the air filter is clean and that nothing is blocking the sensor. (Had one a week ago that was acting wonky, Owner says, "it started doing that after I installed a new air filter" Pulled it apart and the owner had left a chunk of shop rag in the air intake tube!)
Next you can get a can of contact cleaner and clean the contacts real well, also clean the sensor. Check the harness to the sensor for routing as well. Seen a few that set codes because the wiring was run close to the ignition and it was getting some strange pulses the ECM didn't like.
If you have access to a scan tool that will read real time data compare what your seeing to the specs for the sensor.
Most of the range problems I get are due to either bad contacts or the sensor itself.
--
Steve W.

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