Check Engine, Traction Control, Stabilitrak Lights on

Tiny
DAD1279
  • MEMBER
  • 2007 CHEVROLET AVALANCHE
  • 5.3L
  • V8
  • RWD
  • AUTOMATIC
I retrieved the code P0121 so I removed the throttle body and cleaned it and reset everything and the check engine light went off. The next morning the light was on and I had a message telling me to service the traction control and StabiliTrak. When driving it shifts somewhat hard. When I move from park to drive it jerks real hard.
Tuesday, November 24th, 2015 AT 8:44 AM

3 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So what codes do you have now since you reset the codes and the problem came back?A tps circuit issue will cause those codes?
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Wednesday, November 25th, 2015 AT 12:43 PM
Tiny
DAD1279
  • MEMBER
  • 2 POSTS
I think I figured it out, it ended up being a mass air flow problem.
I reset everything and got the idle re-learned and everything seems fine.
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Wednesday, November 25th, 2015 AT 2:07 PM
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
So glad you got I all figured out hope you have a happy thanksgiving.
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Thursday, November 26th, 2015 AT 7:59 AM

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