Question about Lexus LS 400

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I have a lexus ls 400 and i replaced the distributor coils on it and the fuel pump but it won't fire what could the problem be.

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  • homemedical9 Aug 02, 2009

    ok so what if i replaced the fuel pump relay. because you know i checked to see if i was getting fire from the coils and nothing. see this is what happened. i was driving one day and it just cut off and i assumed it was the fuel pump because i didn't hear it come on anymore and i didn't see any fuel passing through but i replaced that and stimm the same thing and i replaced the coils and still the same things. and if its the fuse where would i find the fuse you are talking abouit

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You will have to check fuel pressure, Its possible you got a defective pump or it just wont prime. You may have to put vacuum on the line to pull ithe fuel past the pump. Also make sure you didnt pop a fuel pump fuse and if there is a relay it also works.

Posted on Aug 02, 2009

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Where is the fuel pump on a 1994 lexus ls 400?


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Issues with 92 Lexus LS 400 firing properly


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Do I need to drop the fuel tank in order to change the fuel pump on a 1994 Lexus LS 400?


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http://www.aa1car.com/library/fuel_pump_replace.htm

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Fuel Pump


Hi.....
On your 91 Lexus ls 400.
If you remove the Rear passanger seat.
You will have axces to the fuel pump.
Remove the metal cover . Disconnect the wire harnes,
Disconnect the lines.
removing the nuts you will able to remove the fuel pump.

Ok.. I hope this help on your question.
Thank you for use fixya...

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