No power at fuel pump

Tiny
DUPONT2727
  • MEMBER
  • 1995 TOYOTA COROLLA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 120,000 MILES
I am getting no gas to my plugs. I checked my EFI, and my circuit opening relay. I am receiving volts at my EFI, and it tested okay. Now, at my circuit opening relay. I am receiving volts from my EFI, but no volts is going to my fuel pump when I turn the key to the on position. I tested the circuit opening relay. It also tested fine. What can I test next? Seems like the circuit opening relay will not close and let electrical flow through it, for it can go to the fuel pump. I have tested another circuit opening relay, and I get the same results, no power get through it. Any help on what to test next? I have not tested my fuel pump as of yet. But I need to get power to if first, then I will test it.
Do you
have the same problem?
Yes
No
Saturday, March 26th, 2011 AT 7:10 PM

5 Replies

Tiny
KEN
  • ADMIN
Hello,

The circuit opening relay is located behind the center instrument cluster lower finish panel cover. The fuel pump relay is called the circuit open relay.

Here is a guide and a diagram (below) that will help you get the problem fixed:

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Please let us know what happens so it will help others.

Cheers, Ken

Was this
answer
helpful?
Yes
No
+1
Saturday, August 19th, 2017 AT 2:09 PM
Tiny
SHADONANGGAB4
  • MEMBER
  • 1993 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 212,000 MILES
I have a DX model 1.8 liter engine. I let it almost run out of gas and it ended up shutting off on me. We replaced the fuel pump, fuel pump relay and fuel pressure regulator. It ran fine for about five miles then when I stopped at a stop sign and went to go, it started sputtering like it was running out of gas (it has half a tank) Any suggestions on what to check next?
Was this
answer
helpful?
Yes
No
+2
Saturday, August 19th, 2017 AT 2:09 PM (Merged)
Tiny
FIXITMR
  • MEMBER
First, take fuel pressure reading. Then check TPS and possible EGR sticking. Check/clean MAF/MAP sensor.
Was this
answer
helpful?
Yes
No
Saturday, August 19th, 2017 AT 2:09 PM (Merged)
Tiny
CHEYRL
  • MEMBER
  • 1994 TOYOTA COROLLA
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 165,000 MILES
Four cylinder front wheel drive automatic 165,000 miles.

Have no power to fuel pump. The EFI relay checked out okay with ohmmeter. Circuit opening relay behind dash checked out okay with ohmmeter. I am thinking that the ECM is at fault. The shop manual shows that this unit is behind the dash radio panels, but could not locate. Help!
Was this
answer
helpful?
Yes
No
Saturday, August 19th, 2017 AT 2:09 PM (Merged)
Tiny
BLUELIGHTNIN6
  • EXPERT
The ECM should be under center of dash behind console. picture is below. Do not forget to check fuses as well as wiring at the fuel pump.


http://www.2carpros.com/forum/automotive_pictures/261618_Graphic_506.jpg

Was this
answer
helpful?
Yes
No
+6
Saturday, August 19th, 2017 AT 2:09 PM (Merged)

Please login or register to post a reply.

Recommended Guides