fuel pump

MITSUBISHI
Avatar
GRH
  • MEMBER
  • 1 POST
how do u check if good fuel pump on 91 3000gt
Jul 20, 2007 at 10:31 AM
Advertisement
Avatar
RASMATAZ
  • Experienced Mechanic
  • 75,992 POSTS
If its an EFI system-you should hear the pump come On when ignition key is at On position for a few secs. Do you have this? If it comes On-check the fuel pressure-without the proper pressure she won't start it has to have it.

If it doesn't look for power at the f/pump connector. If you got it there-could be a grounding problem or the pump itself.If not take it back to the fuel pump relay, not there-its coming from the computer or a voltage drop problem.
Jul 20, 2007 at 8:45 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.