After replacing the fuel pump, the fuel pump is not getting power?

Tiny
ERICA RAE
  • MEMBER
  • 2002 LEXUS ES 300
  • 207,000 MILES
Change the fuel pump and now the new fuel pump is not getting power. All the fuses are good, and the relays are good, and it still will not start.
Thursday, September 21st, 2023 AT 10:02 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,747 POSTS
Hi,

Power is sent to the fuel pump via the open relay, under-hood fuse box. Switch it with a different relay having the same part number to see if that changes anything.

Next, if you go to the fuel pump connector, locate the blue wire with a black tracer. Probe it for power while a helper turns the key from off to the run position. Is there power? If there is, we need to check for a ground path.

Locate the white wire with a black tracer and check it for continuity to ground.

Here is a link you may find helpful:

https://www.2carpros.com/articles/how-to-check-wiring

Let me know what you find.

Joe

See pic below.
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Thursday, September 21st, 2023 AT 9:08 PM

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