Mechanics

LACK OF FIRE TO FUEL PUMP

1995 Lexus LS 400

Electrical problem
1995 Lexus LS 400 V8 Two Wheel Drive Automatic 200000 miles

When I hot wire the fuel pump its get gas to engine. Otherwise, there is no fire when I attempt to start the ignition. I recently replaced the fuel pump regulator, fuel pump, gas pressure regular and the crank sensor.
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Bobteague
September 4, 2010.




Elaborate on this. By fire you mean spark in the engine? What is the problem exactly? Your wording is a bit confusing.

Madmike1735
Sep 4, 2010.
Car will not run because of lack of fuel to engine. WhenI hot wire the fuel pump I get gas to the engine but the car still will not start. There is no fire to the pump when I attempt to start engine using the ignition switch. I recently replaced fuel pump and regular and also fuel pressure regular. Is there a some form of relay between the ignition and gas pump?

Tiny
Bobteague
Sep 4, 2010.
Yes. There should be a fuel pump relay. Also check your fuses, there may even be a fuse for the pump
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Madmike1735
Sep 5, 2010.

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