Error Code P0068 with pending code P0101 when trying to start vehicle in winter

GUMBY21NE

MEMBER
2005 PONTIAC GRAND PRIX
3.8L
6 CYL
FWD
AUTOMATIC
140,000 MILES

I have a 2005 Pontiac Grand Prix Base. I tried starting my vehicle this morning and it was idling very rough and then died. The dash panel said reduced engine power and I received a fault code P0068 MAP/MAF - Throttle Position Correlation and pending fault code P0101MAP/MAF - Throttle Position Correlation. I believe I may need to just clean my throttle body but I am not sure if I need to take any extra precautions or steps because the temperature where I am located has been frequently below zero.

5 Replies

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Have you tried cleaning the MAF?

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Thursday, January 2nd, 2014 AT 2:55 PM

GUMBY21NE

MEMBER
5 POSTS

No, I have not. I was going to clean the throttle body and MAF. My only question is do I need to be concerned about the cleaner freezing at all? I have CRC Throttle Body and MAF cleaner. I believe it would have to be -78 degrees for either of these cleaners to freeze. I was just wondering if I need to take any extra precautions or steps do to the cold weather in Nebraska. I don't have a garage so I would be doing it out in the open in the middle of the day. I also understand my car my throttle is drive by wire and I should have someone step on the accelerator without the car being on all the way to open the throttle plate.

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Thursday, January 2nd, 2014 AT 3:01 PM

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

As long as you have the MAF cleaner, it should be fine. It will evaporate before it freezes.

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Thursday, January 2nd, 2014 AT 3:04 PM

AMATTHEWR

MEMBER
1 POST

I also have a 2005 grand prix with the same issue, same display of reduced engine power, and same codes. I cleaned my maf sensor and nothing changed. Were you able to fix yours? Any help would be greatly appreciated. Thanks!

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Sunday, March 2nd, 2014 AT 7:06 PM

GUMBY21NE

MEMBER
5 POSTS

Did you also clean the throttle body? I cleaned the maf sensor and the throttle body which fixed the issue. I am going to start cleaning both once a year when I change my air filters.