Question about 1992 Lexus Ls 400

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Gas will not reach the engine on my 1992 lexus ls 400

I replaced the and tested the fuel pump, new fuel filter. no gas is getting to the engine. the engine turns over but will not start

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  • Contributor
  • 17 Answers

My be the fuel lines or jets

Posted on Apr 22, 2013

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Posted on Jan 02, 2017

  • 51 Answers

SOURCE: 1997 Lexus LS 400 Fuel Filter location

The fuel filter is located under the vehicle on the left side before the rear axle.

Posted on Oct 13, 2008

  • 1 Answer

SOURCE: 1992 Lexus LS 400

I was told there is no fuel filter

Posted on Mar 11, 2009

Mustgo
  • 2359 Answers

SOURCE: my 1992 lexus ls 400 keeps stalling and idleis very low

Look for a small electric motor near the accelerator cable and near the top of the valve cover.

It's call IDLE AIR CONTROL (IAC) motor.

It's job is to increase the idle when load is added.
Example: turning on headlight,turning on AC.

Testing it is simple.

Warm up you car for 10 minutes.

Locate the IAC motor

turn on loads.....AC,headlights,etc


The motor should move the idle up


If the motor does not increase the RPM then it can be stick.

Try to give it few gentle taps to free up the gears.

It can be clean if your are up to it.


This electrical motor is very expensive. Please handle it with care.

====

The other trouble spot are

old accelerator cable

TPS Throttle position sensor

====

I will do a simple tune up and gas treatment before starting to replace any parts.


Please post reply on the comment window.


Posted on Oct 27, 2009

  • 834 Answers

SOURCE: what is the firing order for a 1992 Lexus LS 400?

Here is a diagram that should help you out.


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Posted on Jun 10, 2010

  • 975 Answers

SOURCE: My 1993 Ls 400 Lexus runs fine for about 10 to 15 miles, then shuts off. it will not start for at least 2 or more hours. then it runs again. So far I've replace the fuel pump and fuel pump control

Need to check next time it quits,pull a wire and see if it has spark,
I suspect it is a ignition problem,not fuel.

Posted on Mar 24, 2012

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1 Answer

Remove ecm 1996 lexus ls 400


run fault codes and replace faulty sensors. have a fuel pressure . Check injectors for correct operationtest done on the fuel manifold to test fuel pressure regulator. pump and filters/

Dec 23, 2013 | 1996 Lexus LS 400

1 Answer

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


The fuel pump is inside gas tank behind the back seat unscrew the only top that's there and it is inside the gas tank. You will have to remove your back seat to gain access to fuel pump. Fuel tank is located in trunk. No need to take fuel tank down. Click this link for full details and procedures:--- http://technoanswers.blogspot.com/2011/06/how-to-replace-fuel-pump-on-lexus-ls.html ----------- For fuel filter replacing, click this link:--- http://technoanswers.blogspot.com/2011/06/how-to-replace-fuel-filter-1994-lexus.html ----------- For timing belt and water pump removal and installation, click this link below:-- http://technoanswers.blogspot.com/2011/06/how-to-change-timing-belt-and-water.html ------------ For coolant flushing and filling, click the link below:-- http://technoanswers.blogspot.com/2011/06/how-to-drain-and-fill-coolant-on-lexus.html -------------- This all procedures should help.Thanks.Helpmech.

Jun 02, 2011 | 1994 Lexus LS 400

2 Answers

I have a lexus ls 400 1998, it turns over but will not fire up, there is a good spark, but you get nothing when you try to start it,


check to see if you getting fuel ck fuses for elec fuel pump,ck fuel pressure with tester rented from auto zone or oreilleys,ck injectors with ohm metter unplug injector ck the injector for resistance should be 12 or ubove.utube has a detailed describtion for testing injectors GOOD LUCK

Aug 06, 2010 | 1992 Lexus Ls 400

1 Answer

Issues with 92 Lexus LS 400 firing properly


fuel pump presure needs checked as does the fuel filter. injectors fail commonly and theie easy to test with a scanner just turn them on and off one at a time

Jun 10, 2010 | 1992 Lexus Ls 400

4 Answers

93 lexus LS 400 how do I replace the fuel pump?


You will have to remove your back seat to gain access to fuel pump. Fuel tank is located in trunk. No need to take fuel tank down.

Dec 07, 2008 | 1993 Lexus Ls 400

1 Answer

1997 Lexus LS 400 Fuel Filter location


The fuel filter is located under the vehicle on the left side before the rear axle.

Oct 13, 2008 | 1992 Lexus Ls 400

2 Answers

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...

Aug 19, 2008 | 1991 Lexus LS 400

1 Answer

1992 Lexus LS 400


I was told there is no fuel filter

Jul 23, 2008 | 1992 Lexus Ls 400

2 Answers

Lexus won't stay running


The crazy part about it my car doin the same thing.Part of problem was I had got some bad gas from a cheap gas station( so watch your gas) I replaced fuel filter and pump (by car shop) and put in jet cleaner also. When I took car out shop it was still doin the same thing. I have changed the throttle position sensor and it seemed like it half-way fixed the problem, but now all it do is stall or cut off when touch gas pedal.

Jun 02, 2008 | 1992 Lexus Ls 400

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