Codes

Tiny
WEGLEN
  • MEMBER
  • 2007 CHEVROLET COBALT
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 102,000 MILES
I have a 2007 chevy colbalt that wants to stall in cold weather when I come to a stop. Finally the check engine light came on and I connected a pocket scanner. It said problen is mass air flow sensor low input and pedal/ throttle position sensor low input. Does this mean these two items need to be replaced or is something else causing low input? Thanks. Glen
SPONSORED LINKS
Do you
have the same problem?
Yes
No
Tuesday, December 7th, 2010 AT 4:00 PM

4 Replies

Tiny
KHLOW2008
  • EXPERT
What are the EXACT trouble codes?
Sometmes trouble codes are present due to wiring or other faults so the exact trouble codes are needed to get the correct diagnostic procedures.
Was this
answer
helpful?
Yes
No
Friday, December 10th, 2010 AT 5:46 PM
Tiny
KHLOW2008
  • EXPERT
Since problem is only occurring intermittently and affected by weather, it could be a loose connection somewhere. Unplug the MAF connectors and check the terminals for signs of oxidation or corrosion.

The same applies to the TPS connectors.

Clean and tightern if necessary and reconnect to test.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, December 13th, 2010 AT 1:31 PM
Tiny
WEGLEN
  • MEMBER
Did as you said, also cleaned throttle body as per instructions I saw on this sight. And cleaned pvc hose and port, was mighty oily. We'll see how things go when temperature drops again. Thanks again.
Was this
answer
helpful?
Yes
No
Thursday, December 16th, 2010 AT 6:13 PM
Tiny
KHLOW2008
  • EXPERT
Hope it works.

Good luck and have a nice day.
Was this
answer
helpful?
Yes
No
Thursday, December 16th, 2010 AT 7:36 PM

Please login or register to post a reply.

Related Mass Air Flow Sensor Replace/Remove Content

Mass Air Flow Sensor Replacement
GUIDE
Mass Air Flow Sensor Replacement
Easy step by step guide on how to replace an automotive mass air flow sensor P0100, P0101, P0102, P0103 and P0104, though appearances may vary, the process is similar for...
VIEW MORE

Recommended Guides