1987 GMC S15
156,000 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
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 1:11 PM
Advertisement
Avatar
HMAC300
  • CERTIFIED EXPERT
  • 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 1:56 PM