2001 Surging after coil and plug replacement

Lincoln LS

  1. JohnRauk

    JohnRauk New LVC Member

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    Had to have the car towed after it died on the highway . It was surges and backfires and dies if you put it in gear. I replaced the coils and plugs since it had never been done. No real change. It will start and surge up and down gradually getting worse untill it dies. Gives me a p0102 maf error. Is it worth replacing this sensor?
    Thanks John
     
  2. joegr

    joegr Dedicated LVC Member

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    Unplug the MAF and see if it runs better (doesn't stall). If it does, then it could be the MAF, or it could be an intake air leak. You can also try carefully cleaning the MAF. Unfortunately, most aftermarket MAFs aren't very good.
     
  3. JohnRauk

    JohnRauk New LVC Member

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    Thanks for the reply. Car runs the same when I unplug the maf. Wish it would run long enough to give more codes. I had the battery disconnected so no old codes are available.
     
  4. joegr

    joegr Dedicated LVC Member

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    Just to be clear... It is the same now as it was before the coil and plug change?
    Brand of coils?
    Plug gap verified to be 1.0 mm?

    Will it continue running if you hold the gas pedal part way down?
     
  5. joegr

    joegr Dedicated LVC Member

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    Oh, and the big one. Have the timing chains and tensioners been replaced? If not, next step might be to do a compression test.
     
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    • JohnRauk

      JohnRauk New LVC Member

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      I checked the codes after it was towed to my dads(his car). It would start and die. The codes were P0133, P1131,and P1151. All o2 sensor related i believe. However, dad said this is the same thing that happened last summer. His mechanic replaced 2 of the 8 original coils and it ran well for a while. I figured it would be worth replacing the coils and plugs. They are an an inexpensive brand Spectrum from rock auto along with NGK plugs gapped to 1mm.
      If I push the gas pedal in it will rev up, run for awhile and start to backfire and finally die.
      Timing chains have not been changed
      2001 v8 with 108k
       
    • joegr

      joegr Dedicated LVC Member

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      Non-OEM coils are known to damage the PCM, however I would do a compression test first as your symptoms fit well with a jumped or broken secondary chain.
       
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      • JohnRauk

        JohnRauk New LVC Member

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        Ouch. Would you expect further damage if the chain has jumped/broken? Might be time to retire the old chariot.
         
      • joegr

        joegr Dedicated LVC Member

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        Usually, but not always.
         
      • JohnRauk

        JohnRauk New LVC Member

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        I'll do a compression check as soon as I can get back over there. Do you have a preferred gauge for the ls? The stem on mine is way too short to reach the spark plug hole.
        Thanks again for all you help
         

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