Check Engine Light On...P101 Code HELP

opsbear7 · June 9, 2006

Hey guys,

My buddy has a 2003 2500 Silverado with the 6.0L, he is at about 55,000mi and his check engine light just came on. There doesnt seem to be anything wrong with it, but it sure is lighting up. So of course we ran down to get the codes and came up with either P101 or P10101. One or the other. Anyways the guy said he though maybe 02 sensor or something like that. I do not have much background on this, so the more help is better. If you know the code and have a solution please let me know!

az'03Silverado · June 9, 2006

The code is for the MAF sensor. Does he have a K&N filter? or a Hypertech tune? Mine gave me the same code so I cleaned my MAF sensor, changed everything to stock and have had no problems since.

opsbear7 · June 9, 2006

The code is for the MAF sensor. Does he have a K&N filter? or a Hypertech tune? Mine gave me the same code so I cleaned my MAF sensor, changed everything to stock and have had no problems since.

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Yeah...he has the K&N in his truck hes had it for about a year now.....so do i just need to clean it out for him? If so, i am gonna need some dummied down directions so i dont screw anthing up thanks!

az'03Silverado · June 9, 2006

Just follow the directions on the re-oil kit and don't over-oil it like I did.

opsbear7 · June 9, 2006

So i just need to oil up the K&N for him and he will be on his way? Wil the sensor automatically reset the check engine light anda ll that?

az'03Silverado · June 9, 2006

You may need to clean the sensor with a little electronics cleaner or MAF sensor cleaner. The light will go out but the code will stay in the computer until it's cleared with a code reader.

opsbear7 · June 9, 2006

Thanks for your help...we will try doing that stuff. Thanks again!

rbell219 · June 9, 2006

If it is P0101, P1100, or P1101 then it is the MAF. The Hypertech tuner might be able to clear the codes. If not the place that read it can do it for you. Get a K&N recharge kit and follow the instructions - do NOT over oil it. The problem is air passes through with oil in it and it can possibly damage the sensor beyond help. I don't know what they cost to replace but GM tends to be proud of those simple electronic parts. Cleaning it should do the trick if it hasn't gone too long.

opsbear7 · June 9, 2006

If it is P0101, P1100, or P1101 then it is the MAF. The Hypertech tuner might be able to clear the codes. If not the place that read it can do it for you. Get a K&N recharge kit and follow the instructions - do NOT over oil it. The problem is air passes through with oil in it and it can possibly damage the sensor beyond help. I don't know what they cost to replace but GM tends to be proud of those simple electronic parts. Cleaning it should do the trick if it hasn't gone too long.

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Will do guys....Thanks a million