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1995 Lexus LS 400 lack of fire to fuel pump

Tiny
BOBTEAGUE
  • MEMBER
  • 1995 LEXUS LS 400
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 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.
Saturday, September 4th, 2010 AT 7:50 PM

3 Replies

Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
Elaborate on this. By fire you mean spark in the engine? What is the problem exactly? Your wording is a bit confusing.
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Saturday, September 4th, 2010 AT 7:53 PM
Tiny
BOBTEAGUE
  • MEMBER
  • 3 POSTS
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?
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Saturday, September 4th, 2010 AT 8:40 PM
Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
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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Sunday, September 5th, 2010 AT 1:22 AM

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