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92 Jimmy 4

Tiny
ANONYMOUS
  • MEMBER
  • 1992 GMC JIMMY
  • 130 MILES
92 jimmy 4.3 vortec. My question Is what could be the problem when I have to give it throttle to start and keep it above 1000rpm so it can idle then at speeds it doesn't matter how fast I go it will surge, at 70 with cruise control on the CEL came on and stays on until its turned off. I think it might be the throttle position sensor and I have no Idea how to pull my own codes without a reader which I can't access. Any help would be appreciative.
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Tuesday, October 23rd, 2012 AT 11:21 PM

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Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
The DLC is on the left side under the dash it will look like below just connect a jumper wire between A and B

Turn key on-Read the flashes-example- flash pause flash flash is code 12
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Tuesday, October 23rd, 2012 AT 11:57 PM
Tiny
RASMATAZ
  • MECHANIC
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Correction use this:
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Tuesday, October 23rd, 2012 AT 11:58 PM

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