Question about 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
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
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
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
Tips for a great answer:
Jun 02, 2011 | 1994 Lexus LS 400
Aug 06, 2010 | 1992 Lexus Ls 400
Jun 10, 2010 | 1992 Lexus Ls 400
Nov 24, 2009 | 1992 Lexus Ls 400
Dec 07, 2008 | 1993 Lexus Ls 400
Aug 19, 2008 | 1991 Lexus LS 400
Jun 02, 2008 | 1992 Lexus Ls 400
Mar 08, 2015 | 1992 Lexus Ls 400
158 people viewed this question
Usually answered in minutes!