My engine cuts out sometimes

1989 CHEVROLET TRUCK
70,000 MILES
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STOGDOG
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  • 5 POSTS
My 1989 chevy 1500 4x4 350 TBI is sputtery, and cuts out sometimes. Sounds like it has a miss if standing at backside of truck by exhaust. Has new fuel filter, plugs, cap and rotor, thinking maybe be the fuel pressure regulator or possibly the TBI itself. It has a newer 350 TBI Crate motor in it, and it's got a new fuel filter, plugs, cap and rotor, not sure where to go next.
May 15, 2012 at 6:52 PM
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FIXITMR
  • CAR REPAIR CONTRIBUTOR
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CEL on?
May 15, 2012 at 7:01 PM
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STOGDOG
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  • 5 POSTS
No, it is not.
May 16, 2012 at 6:23 AM
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FIXITMR
  • CAR REPAIR CONTRIBUTOR
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check MAP or MAF sensor whichever you have. map has vacuum while maf has heated 'wire' that gets dirty.
May 16, 2012 at 7:27 AM
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STOGDOG
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I am not 100% sure on which of those I have. Any easy way to distinguish the two?
May 16, 2012 at 4:37 PM
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CHEVYFORLIFE
  • EXPERT
  • 33 POSTS
You dont have a MAF only a MAP. you could try a ignition control module.
May 19, 2012 at 2:36 PM
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