Check eng light on its reading throttle.

Tiny
BJT59
  • MEMBER
  • 2007 GMC YUKON
  • 69,000 MILES
Check eng light on its reading throttle position sensor where is it and can I put it on
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Tuesday, January 1st, 2013 AT 10:41 PM

8 Replies

Tiny
ASEMASTER6371
  • EXPERT
What is the code

codes never identify bad parts, just failed systems

Roy
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Tuesday, January 1st, 2013 AT 10:42 PM
Tiny
WRENCHTECH
  • EXPERT
This is a "drive by wire" electronic throttle system that requires some very expensive diagnostic equipment to troubleshoot. It uses 2 TPS sensors and then are incorporated into the electronic throttle body which is not cheap so you don't want to misdiagnose this.
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Tuesday, January 1st, 2013 AT 10:47 PM
Tiny
BJT59
  • MEMBER
Code po121 po443
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Tuesday, January 1st, 2013 AT 10:57 PM
Tiny
BJT59
  • MEMBER
Code are po121 @po443 so take it to Auto mechanic
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Tuesday, January 1st, 2013 AT 11:52 PM
Tiny
WRENCHTECH
  • EXPERT
Unless you feel like rolling the dice on a $600 part, yes, that is what I would advise.
The P0443 has nothing to do with that issue. That another problem in the fuel vapor system.
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Tuesday, January 1st, 2013 AT 11:57 PM
Tiny
WRENCHTECH
  • EXPERT
I just looked and the throttle body is more like $300 but still an expensive gamble.
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Tuesday, January 1st, 2013 AT 11:59 PM
Tiny
BJT59
  • MEMBER
The another problem can I fix it
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Wednesday, January 2nd, 2013 AT 12:14 AM
Tiny
WRENCHTECH
  • EXPERT
That indicates a problem in the purge control circuit that also need to be diagnosed electronically.
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Wednesday, January 2nd, 2013 AT 12:17 AM

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