Engine starts will not rev and then shuts off

1994 CHEVROLET SILVERADO
235,000 MILES • 5.7L • V8 • 4WD
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DJAMESJSR37
  • MEMBER
  • 1 POST
Ran code test codes 33 and 44 replaced MAP and oxygen sensor. next code was 82 and 43, replaced replaced knock sensor and ignition. Control, ext.coil fires full time with ignition on. so I take it's okay. I have replaced about all but pickup coil. Reinstalled old MAP and code 82 keeps coming up.
Aug 27, 2019 at 11:34 AM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,840 POSTS
  • ASE Certified Mechanic
Hello,

Does it run better on starting fluid? it sounds like the fuel pump is going out. To be sure here is a guide to help us test the fuel pressure:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Please run down this guide and report back.

Sep 8, 2020 at 12:11 PM
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