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Code PO 101


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whatupjoe
New User

Sep 6, 2009, 6:18 AM

Post #1 of 5 (11489 views)
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Code PO 101 Sign In

I put truck on scanner came up with PO 101 Can everyone help me what to do or look for to fix it please
2006
GMC

Sierra SLE
5.3

109,000.


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 6, 2009, 7:42 AM

Post #2 of 5 (11476 views)
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Re: Code PO 101 [In reply to] Sign In

That indicates a problem with the data coming from Mass air flow sensor or it's circuit.



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



Sidom
Veteran / Moderator
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Sep 6, 2009, 7:45 AM

Post #3 of 5 (11470 views)
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Re: Code PO 101 [In reply to] Sign In

If you're running a K&N filter, get a can of MAF sensor cleaner & hope you didn't kill you MAF.






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whatupjoe
New User

Sep 6, 2009, 8:53 AM

Post #4 of 5 (11460 views)
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Re: Code PO 101 [In reply to] Sign In

Where can I find it at, (MAF sensor cleaner) call all part store, no luck!!!!


Sidom
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Sidom profile image

Sep 6, 2009, 9:33 AM

Post #5 of 5 (11454 views)
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Re: Code PO 101 [In reply to] Sign In

They may have it & not realize it.

It will be in the carb cleaner, throttle body cleaner section. I believe Gumout (sp) makes it. The one I use is in a gray can. It's designed specifically for MAF sensors, not as harsh as carb clean & does a good job. The main area to clean is the little sensing wire inside the housing

I stand corrected.....it's CRC







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(This post was edited by Sidom on Sep 6, 2009, 9:34 AM)




Code PO 101


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