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.
Sep 21, 2023 at 10:02 AM
After replacing the fuel pump, the fuel pump is not getting power?
2002 LEXUS ES 300
ERICA RAE
- MEMBER
- 4 POSTS
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JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 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.
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.
Image (Click to enlarge)
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Sep 21, 2023 at 9:08 PM
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