Truck runs when gas poured in the tbi

Tiny
ANONYMOUS
  • MEMBER
  • 1990 GMC
  • 175,000 MILES
Truck runs when gas poured in the tbi. Can hear injectors pulsing. Have plenty of fuel pressure to the tbi but nothing out the injectors or the return line.
Friday, December 21st, 2012 AT 9:22 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
What is the fuel pressure?
Test for injector pulse using a small bulb called a noid light. If none found, check for power supply at one side of the injector with the key on.
Post your results here
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Friday, December 21st, 2012 AT 9:26 PM

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