How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Amedee Your Own Question
Amedee
Amedee, Subaru Technician
Category: Subaru
Satisfied Customers: 24399
Experience:  ASE Technician advanced level specialist. Wisconsin certified emissions state inspector
279429
Type Your Subaru Question Here...
Amedee is online now
A new question is answered every 9 seconds

subaru Impreza WRX no fuel pump ground intermitant 03 impressa

Customer Question

no fuel pump ground intermitant 03 impressa wrx
Submitted: 6 years ago.
Category: Subaru
Expert:  Amedee replied 6 years ago.

Hello!

 

Your fuel pump is controlled by your fuel pump controller. THe fuel pump controller needs to get powered up in order to operate. It gets powered up via fuel pump relay. Here is a wiring diagram.

 

graphic

Customer: replied 6 years ago.
Thanks, XXXXX XXXXX fuel pump relay works 100% of the time. the fuel pump controler only grounds the fuel pump 50% of the time.it must be controled by the computer. this is the wire that grounds the fuel pump for a few seconds with key on engine off. is there any way to ck pwr/grounds from the ECM in this ciccuit. Or any other thoughts??
Expert:  Amedee replied 6 years ago.
Hello!

Sorry for the delay!

If your fuel pump controller is only working some of the time, then just be sure to check all of its inputs. If all of the inputs are present when the fuel pump controller is not working, then the fuel pump controller is bad and will need ot be replaced.

Related Subaru Questions