Question about 2000 Lincoln LS

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2000 lincoln ls i got a trouble code p1633 (KAM)voltage to low

Does anybody know what this code means and a possible fix the check engine light is on and is has a rough idle and misses between 40 and 50 mph otherwise runs fine. from everything i read it sounds like a bad coil but this was the code i got when i scaned it. thanks

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  • robert martin Nov 25, 2008

    rough idle car cuts off feels like when you have bad gas. Check engine code comes up for ignition coil short. I thought it could possibly by a sensor that monitors TPS or tach

  • tmgan Dec 02, 2008

    My car seems to run just fine but the ck engine light keeps coming on and off randomly. Now it won't pass smog because of the light - not tail pipe emissions. My mechanic says it is likely a problem from the dual mass flywheel which has pick up points on it that the engine management computer uses. So if the flywheel is wacky, the computer gets a bad signal and sets off the light. Argh!

  • Anonymous Dec 31, 2008

    My car shakes when i am stopped at a red light and sputters too. Our car def. needs a tune up.

    mrsmth31

  • Anonymous May 03, 2009

    well i took a little different approach and started to replace the coils and spark plugs.  


    After two coils ($50.00 a piece) and sparks plugs all 8.  it ran good for a few days and then the symtoms came back.  Sputtering and shaking and when at a traffic light the engine will not run over 3000 rpm's.  


    I am looking now for the speed sensor.  Next step is replacing the other coils.  Will try the battery things also now.  Hopefully it is a computer thing.  



  • quiltiowa May 11, 2010

    what is the code?

    if you wrote it in the headline i cant read it all i get is.........

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P1633 means KAM (Keep Alive Memory ) Voltage too low. the KAM is caused by low battery voltage and you replace the battery.When you replace the battery the KAM loses Memory and the problems resulting in what you are experiencing now.When replacing a new battery, reconnect the Positive cable first.And use a trickle battery charger set low to the cables before disconnectng the battery . this will keep the voltage to the ECM powered with enough voltage. All you can do now is make the computer relearn the way it should run. Disconnect the negative cable from the battery, wait a while 20 seconds or so. then reconnect the cable. I do not know if this is a temporary fix or not but it should re-program the computer.

Posted on Nov 30, 2008

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I beleive it would be the speed sensor,

Posted on Jan 08, 2009

  • tony doyle Jun 04, 2011

    where is the speed sensor

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SOURCE: 2000 Lincoln LS and the Engine Light came on. Codes 0171 0174

you probably have a vacuum leak. check all your hoses pcv hose for sure. it means the engine is seeing too much air with the fuel.

Posted on Oct 02, 2008

  • 3 Answers

SOURCE: which ignition coil is bad?

I went thru this on my 2002 LS as well.
I replaced one ignition coil at the dealer - only to get the same misfire code on another cylinder. After a little research found out is actuall a gasket/o-ring problem design of the block. Spark plugs are deep in the block - under the oil - which is why they are supposed to last 100,000 miles. But the o-rings start to leak some where between 65k-85k miles. Coils go bad because of oil contamination. If you don't solve leaking oil problem will have to replace coils again - but sooner - because leaking oil will be progressively worse.
Cost - 8 ignition coils
set of spark plugs (who knew they were that expensive
and a ton of cash for the labor to tear down the top of the motor

Posted on Dec 14, 2008

  • 9 Answers

SOURCE: 2001 LINCOLN LS V6 - ROUGH IDLE / SOMETIMES STALLING.

Very common problem is about a dime size hole wearing in the rubber elbow on the PCV valve located on the driver side rear of the intake manifold.

Posted on Oct 13, 2009

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