1987 Gmc S15 Jimmy Wont Start Just Rolls Over Soon Unplug Injector Cables Fire

1987 GMC S15
156,000 MILES
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my jimmy wont start it just rolls over and as soon as i unplug the injector cables it fire right up for a short moment i also noticed its dumping alot of fuel into that throttle body.
Apr 3, 2013 at 6:11 AM
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HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
it does that because it's open loop scan for codes to see what is wrong and check fuelpressure for a 4.3 it's 9-11 psi
Apr 3, 2013 at 6:56 AM
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