Question about 1991 Lexus LS 400

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Why my 1991 lexus ls 400 will not get any spark to the coils packs

Why my 1991 lexus ls 400 will not get any spark to tthe coil packs i chang crank sensor, both coil packs and both ignition modules when i try to start it it just turn over continous but no start it is seems like what ever makes the coil packs get spark is not working can anyone help me? thanks.

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Lexus / Toyota make something call igniters and you have to make sure you are igniters or operational and you have to make sure that your fuel pump is working properly because if you're not getting enough fuel you can have all the spark in the world and you're not going to get a combustion

Posted on Feb 06, 2018

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All kinds of repair manuals are available here.Have a look of this may be you will get something useful. They also provide discount
1991 Lexus LS400 Service Repair Manual Download

Posted on Feb 02, 2018

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6ya6ya
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SOURCE:

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Posted on Jan 02, 2017

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SOURCE: 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...

Posted on Aug 19, 2008

j_del
  • 1586 Answers

SOURCE: lexus ls 400

www.alldata.com - it's $25 for a year-long subscription and gives you troubleshooting charts, parts diagrams, exploded diagrams of every system on the car, etc - it's an online factory service manual. Excellent resource that is well worth the small cost.

Posted on Sep 08, 2008

  • 69 Answers

SOURCE: radio locked 1991 lexus ls400

Consult your owners manual--in the radio section there is a master code listed---use that then reset the radio with your own code---

Posted on Jan 14, 2009

  • 35 Answers

SOURCE: cobalt no spark

I was going to say crank sensor, but you changed it. What have you done to it latley? Or did this just start? I kinda want to say PCM for some reason. Any welding done on the car latley?

Posted on Feb 26, 2009

mkv0525
  • 358 Answers

SOURCE: 1991 lexus ls 400

key and or tumblers are worn. need to replace one or both.

Posted on May 21, 2009

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Related Questions:

1 Answer

What is the function of the fuel pump and ignition coil pack for my 92 ls 400 lexus


The fuel pump pumps the fuel from the fuel tank under pressure up to the fuel rail and injectors.
The coil packs provide a electrical charge (about 40,000 volts) to the spark plugs. It is this charge that makes the spark plug spark.

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1999 lexus ls400 coil packs


Bad wires,IAC sensor,dirty throttle body.Next could be TPS sensor[RPM].

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My lexus ls 400 will run for 30 minutes then stall and it will take at least 30 minutes for it to start


check engine temperature could be overheating or you have faulty throttle control motor.could have faulty mass air flow sensor.have vechicle code scan before buying new parts.

Oct 08, 2012 | 1990 Lexus LS 400

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crank shaft position sensor

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Where is the ignition coil on a 1999 lexus ls 400


The ignition coils are built on the spark plug boot. You have to take the plastic cover off thats on the valve covers. The cover usually says V8 four cam on it.

Mar 07, 2011 | 1999 Lexus LS 400

1 Answer

My heat doesn't work in 1991 lexus 400


Have the heater coil flushed out to make sure it doesn't clog up. The heater only works if there is coolant flowing through it when the heater turns on. Good luck.

Nov 20, 2010 | 1991 Lexus LS 400

1 Answer

Why would a lexus ls 400 constantly flood and not start. plugs keep getting very wet whith faul.


if you refer to spark plugs wet with fuel , 1st check for ign coil have spark , if good, then check engine compression , if under 100 psi , thats the problem.
write me mecanica03@hotmail.com

Aug 15, 2010 | 1997 Lexus LS 400

1 Answer

92 lexus es300 no spark r&r coil still no spark what now?


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Feb 01, 2010 | 1992 Lexus Ls 400

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