88 chevy 350 tbi right injector spraying to much fuel left not enough

Asked by Seth Aug 29, 2022 at 03:31 PM about the 1988 Chevrolet C/K 1500 Cheyenne 4WD

Question type: Maintenance & Repair

Ive got a 1988 k1500 with tbi and the left
injector isnt spraying enough fuel and the right
injector is spraying to much fuel what could
cause this? Also what should the fuel pressure
be at the fuel filter im only getting 12 psi and
dont feel like thats enough

2 Answers
40,075

beatupchevy answered 2 years ago

I would replace them both , 12 psi for fuel may be good with those they don't get a lot as I remember .

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310,565

Gene answered 2 years ago

Fuel pressure sounds good, I would swap injectors and see if it then changes sides, if it does then replace the injectors, if it doesn’t then you have a injector driver problem, this could be a wiring issue of even the computer itself. Have you checked for any trouble codes?

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