[serz25]

Hey, I have a 94 s-10 with the vortec v-6 and have had a ruff idle since i removed and cleanned my intake manifold to gm specs, put a gm performance chip in it, and changed the egr. Anyone HELP
:dunno:

 

[guttlesswonder]

sounds like a chip prob im guessing its a jet if so take it out before it screws it up or the gear rotio the chip is programmed to is wrong to test if this is it take out the chip and unplug batt for about an hour

 

[serz25]

it's a GM chip it was put in to remove carbon from the engine by my GM dealer, sounds a little funny i know but, that is what the manual said to do

 

[98esten]

could be a vacum leak it could also be your distributor is off just a little.