Check Engine , Traction Control, Stabilitrak Lights on

2007 CHEVROLET AVALANCHE
5.3L • V8 • RWD • AUTOMATIC
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DAD1279
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  • 2 POSTS
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.
Nov 24, 2015 at 12:44 AM
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SATURNTECH9
  • ✓Experienced 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?
Nov 25, 2015 at 4:43 AM
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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.
Nov 25, 2015 at 6:07 AM
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SATURNTECH9
  • ✓Experienced Mechanic
  • 30,869 POSTS
So glad you got i all figured out hope you have a happy thanksgiving.
Nov 25, 2015 at 11:59 PM
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