92 JIMMY 4

1992 GMC Jimmy



October, 23, 2012 AT 11:21 PM

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.


2 Answers



October, 23, 2012 AT 11:57 PM

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



October, 23, 2012 AT 11:58 PM

Correction use this:

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