1998 Chevy S-10 fuel pressure

1998 CHEVROLET S-10
180,000 MILES • 4 CYL • 2WD • MANUAL
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BIGVOLMAN
  • MEMBER
  • 1 POST
I do not have any fuel pressure. I took the fuel pump out and it runs fine hooked up to the battery. I've swapped the relay 3 times, I've inspected the wiring and it all looks good, I've changed the power connector at the pump. I pressed the relief valve on the gas line and there is no pressure, at most a single drop of gas creeps out. My next guess is the PCM. Any help?
Feb 2, 2008 at 11:58 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Do you have power at the fuel pump connector gray wire for 2secs when key is at On position. If not could be a problem with the computer fuel control relay Check pin out#8. Also check gray wire at each injector-do you have power?


https://images.2carpros.com/forum/automotive_pictures/12900_fuel_pressure_system_circuit_1.jpg

Feb 2, 2008 at 3:41 PM
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