my 4.3 tbi.it sputtering when im apply gas.if I gradually give it gas ok.if im kinda heavy on it its sluggish. if I floor sluggish, but then smoots out an ok.

Asked by Apr 23, 2014 at 02:42 AM about the 1994 Chevrolet S-10 2 Dr LS Extended Cab SB

Question type: Maintenance & Repair

I rebuilt my tbi.then rebuilt one out of the yard.then rebuilt one a friend gave me.nothing changed.plug an wires
check.cap check.fuel filter check.gas supply line check.a module on the front left side of the tbi.i dont know what it
is.but my buddy told me to swap it out check vacuum yup check.im beside my self.if the intake or gasket was
bad.wouldnt I get some kind of leakage???.can ya help me bro????

4 Answers

104,495

Sounds like a throttle position sensor issue.

1 out of 1 people think this is helpful.
104,495

http://easyautodiagnostics.com/gm_tps_test/pickup_van_tps_1.php -- here's how to test yours. Hope this helps.

Nope

1 out of 1 people think this is helpful.

It was the coil pack

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