Question about Lexus LS 430

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My problem is lexus xl 570 good ignition firing ang fuel flow but no start the engin what is the main problem what is the sulotion this problem

Ignition good and fuel engine not to start what is the main problem

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  • Lexus Master
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Well without know what engine you have, and if there are any codes present its hard to say...could be many things...crank sensor, cam sensor, bad timing chain or belt, etc..etc...would need more information from you for a proper diagnosis

Posted on Dec 03, 2012

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Posted on Jan 02, 2017

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SOURCE: 1996 Ford Escort 1.9L hatchback engine cranks but doesn't start.

if the fusebox is above accelerator pedal its relay number 1 .best of luck.

Posted on Oct 19, 2008

  • 1 Answer

SOURCE: 1995 TOYOTA CORROLLA WOULD NOT FIRE

I have a 95 toyota corolla sedan. Put in new rebuilt engine, fired it up, it ran for 5 seconds, then quit...now i have no spark? what is it? I changed the igniter, still no spark

Posted on Feb 06, 2009

  • 700 Answers

SOURCE: engine won't fire up, bgin to but dies quickly. Plenty of fuel, new battery.

Yes, its the first suspect. Check your distributor cap for corrosion or wipe it with clean dry cloth some is only due to moisture inside it. Next is your spark plug.

Posted on Apr 20, 2009

  • 15 Answers

SOURCE: 1986 toyota 4runner fuel delivery

check the fuel pressure regulator

Posted on Aug 23, 2009

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SOURCE: need wiring diagram for 2001 kia sportage , need it for fuel pump

my 2003 kia sportage xse speedo stopped, rev counter still works. anyone got any idea

Posted on Feb 12, 2010

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2000 yukon XL 2500 no fuel pressure


have you checked to see if engine is firing? ignition module can go bad and you would loose fire and fuel at the same time. i replaced one on a chevy truck last week and it was located beside the ignition coil.

Jul 22, 2012 | 2000 GMC Yukon XL

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I have a 99 GMC suburban it has set for a few months its turning over but won't start I changed my spark plugs what else can I do.


with a glass.. like a shot glass poor half a shot into the intake. have a fire extinguisher handy and try starting it if it tries to start could be fuel pump or fuel filter

Jun 14, 2012 | 1999 GMC Suburban

1 Answer

Lexus LS400 cranks but will not stars


CHECK FOR SPARK AND FUEL.IF ALL IS GOOD A BAD COLD START VALVE WILL CAUSE COLD ENGINE START UP PROBLEMS COLD START VALVE DOES SAME JOB AS ENGINE COOLANT TEMPERATURE SENSOR IT ENRICHEN FUEL SYSTEM FOR COLD START UPS. DO LITTLE TUNE UP MAKE SURE SPARK PLUGS AND WIRES GOOD, REPLACE DISTRIBUTOR CAP AND ROTOR,CHECK IGNITION TIMING, REPLACE AIR FILTER AND FUEL FILTER. IF CAR GETTING FUEL AND SPARK.CAR TIMING BELT COULD HAVE JUMP TIMING IF TIMING BELT NEVER BEEN SERVICED OR REPLACED.

Oct 24, 2011 | 1993 Lexus Ls 400

2 Answers

1991 lexus ls400 stalls as if it dont want to pick up while im driving like the gas not flowing the right way


sounds like the fuel filter is bad or the throttle position sensor is going bad.

Feb 28, 2011 | 1991 Lexus LS 400

1 Answer

Lexus rx 300 does not start


One of a multiple solutions .Gotta have fuel /Gotta have fire.If you have both possoble broken timing belt..With a broken belt sound of engine turning over than be different than normal..Some say like a sewing machine due to no compression. Check fire at a spark plug..If you have fire have someone tap the bottom of the fuel tank with mallet while turning over..Nine times out of ten vehicle will start if fuel pump bad.May start again but not for long...Good Luck

Dec 16, 2010 | 2002 Lexus RX 300

2 Answers

Hi, I have a 1990 lexus ls400. Whenever i start the car it goes off right away. If i keep giving gas then it stays on but then again if i give more gas it goes off. I replaced the air flow meter...


If you have not changed your air and/or fuel filter recently, that is a good place to start. Also check your spark plugs and make sure they are gapped properly (.044"). you might also have a vaccum leak somewhere.

Oct 06, 2010 | Lexus LS 400 Cars & Trucks

1 Answer

I got an P0171 code on my 2000 Lexus which I'm told has something to do with my mass air flow sensor..Is this a commmon problem and what symtoms can it cause?..Car is slow to accelerate and is idiling on...


P0171 sets when air/fuel ratio feedback is stable after engine warm up, & fuel trim is considerably in error on the lean side.
The signal from a/f ratio sensor is approximately proportional to existing air-fuel ratio.
CHECK: system for intake leaks, incorrect fuel pressure, plugged fuel injectors, 02 sensors or coolant sensor operation.
check air fuel ratio sensors. to test main AFR sensors directly you will need a good scan-tool to test parameters.
A thorough preliminary check is important. If you take your time you may find the answer before you start playing the "process of elimination " game.
Good luck, let me know how it is going.

Apr 27, 2010 | 2000 Lexus ES 300

4 Answers

I have a 2001 Chevrolet Suburban will not start I turn the key it sounds like it is going to start but it does not.


can you hear the fuel pump running in the gas tank when you first turn the key to the run position?

Aug 08, 2009 | 2003 Chevrolet Suburban 1500

2 Answers

Dashboard works intermittently. Engine wont fire for awhile after about one hours use. Will start after a "cooldown" period of about 15-30 minutes.


I am not a Lexus expert, instead I am a Ford expert. However, I expeienced this type of problem once on a Ford and it ended up being the ignition switch, not the key cylinder but the electrical part. The ignition switch handles all the current flow for everthing that comes on when the key is turned to "ON".
WHen the current flow got heavy with the a/c blower on high, it overheated the switch. Ended up replacing the switch and installing a 12 gauge wire on the switch to act as a heat sink for the wire that feeds the blower motor.
Motors, rear defroster, horns and cig lighter take a lot of current to run.

good luck. report back on findings. I'm curious.

May 24, 2009 | 2004 Lexus RX 330

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