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Cant figure it out

Tiny
DADDYOFZAKK
  • MEMBER
  • CHEVROLET SILVERADO
My 1991 chevy 1500 runs real bad at an idle but only some time. Ive done the whole tune up thing. And it did not help. And when I floor it, it will spit like it is not getting enough fuel but only sometimes. Im pretty good at this I mean its only a 350 v8. Thank you in advance for your time
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Wednesday, October 24th, 2007 AT 9:20 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lets find the idle air control valve/EGR and also check the closed and wide open throttle voltages of the throttle position sensor/ to include the MAP sensor.

Might also want to check the exhaust system for restriction.
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Thursday, October 25th, 2007 AT 2:32 AM

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