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I have a Lexus LS400 whith a check engine code 13. I was hoping someone could piont me in the right direction as to where i need to start my trouble shooting. i'm also looking for the cam sensors loca

When i left for work my lexus ls 400 ran great. I got about 3 miles down the road and went down a street with 3 speed bumps & it was still running great. when I pulled up to the stop sign it went to a real rough idle like the engine was misfiring on several cylinders. i checked most of the plug connectors & wiring. so far all that seems to be ok. i'm stuck now. can somebody please HELP

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  • Cars & Trucks Master
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First thing to do is to have the fault codes read to find which sensor is faulty

Posted on Nov 12, 2014

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SOURCE: 1999 pontiac grand prix . will not run

If wiggling the wires cured the code, then one of the wires is broken inside the insulation. Pull on each wire one at a time. look for the colored insulation to stretch, this will be the broken wire. For the other car that wont rev up, this is a common when the catalytic concverter is plugged up. This will also cause MAF codes, and in turn, TRAC OFF light.
See http://www.greatautohelp.com

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Sounds like either the ignition module and or a coil pack is the culprit. I dont remember what year they changed it but if your is the one where the coil packs/module are located on the back of the motor they are a little tricky to get to. You need to remove dog bone mount and replace with a tool that will pull the motor forward so you can gain easier access...good luck. Hopefully yours are right on the top where they should have been since day one... :-)

Posted on Feb 20, 2009

redbeard00
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SOURCE: P0301 - Cylinder 1 Misfire Detected on a 1998 s-10 idles rough

Sounds like a bad fuel injector. Shop would need to run a contribution test to confirm. I must say, good detective work, good luck.

Posted on Apr 29, 2009

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SOURCE: 2002 kia sedona 3.5l has rough idle replaced plugs wires and coil

this vehicle has coil packs for the ignition correct? have you ran the engine at night with all surrounding lights outs so its really dark. spray a mist of water on the coil packs and spark plug wires to see if you have spark/voltage leaks jumping out from them. sometimes the tiny sparks will be so fine and skinny you can barely see them so it needs to be dark. hope this helps your trouble shooting. a coil pack could have such a fine crack for the voltage to leak from that you cant see it.

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SOURCE: 2004 Neon SXT cylinder misfire

TRY REPLACING THE CRANKSHAFT POSITION SENSOR..HAVE SEEN THESE CAUSE MISFIRES AND LOW VOLTAGE DTCS AS PCM THINKS VEHICLE IS NOT RUNNING..ALTERNATOR MAY NOT BE PUTTING OUT PROPERLY

Posted on Jul 07, 2009

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1 Answer

How do i get rid of engine code 13 on my 1992 Lexus LS400


You change no parts

The only parts that get replaced, are
those that fail a test

Have a repair shop take over & find a problem
thru proper testing vs: a wish & hope strategy
on a guess, by replacing good parts

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Where should i start my troubleshooting for engine trouble code 13 on my 1992 Lexus LS400. i've already checked most of the connecters & wire harnesses & they seem to be ok.


Hi Tony, Trouble code thirteen is referring to the RPM signal.circuitry. It can relate to the crank or cam pick up sensors and be a poor connection, but will normally make it difficult for the engine to start once switched off. Check all connections plug coil connections and cam and crank, one or more may simply be loose. and depending how you went over the humps, may simply be disconnected, but unplug and replug each. Appearances can be deceptive. Regards John

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