1998 Chevy Cavalier fuel problem

1998 CHEVROLET CAVALIER
80,000 MILES • 4 CYL • 2WD • MANUAL
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DANIEL_COLEMAN
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  • 1 POST
I have a 98 cavalier 2.4 i have replaced the fuel relay,fuses,crank sensor and the fuel pump(salvaged).But i can get both fuel pumps to come on by directly wiring them with 12 volts and they come on!I have tested the wiring and there is 12 volts going to the wiring to the pump but as soon as i plug the pump in to the car and turn the key the pump will not come on! Is it a fuel pressure sensor or a fuel pressure regulator? Or neither of those? please help!!
Feb 22, 2010 at 1:12 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check for power at the gray wire on the injectors -do you have it if not do below

Check and test the PCM ground pin no.18 black and white wire at the computer for the fuel pump relay ground side-let me know
Feb 22, 2010 at 3:35 AM
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