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About Markotime

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    Contributing Member

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  • Present cars
    Cayenne base
  • Former cars
    356a coupe, 356a cabriolet

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  1. CEL came on, no missing or other noticeable engine anomaly. El cheapo ELM OBDII reader produced these codes: Was able to extinguish CEL. P3104 Intake manifold air control solenoid - short to positive P0104 Mass or Volume Air Flow "A" Circuit Intermittent P0204 Injector 4 – circuit malfunction This suggests an intermittent wiring short. Any ideas on where such might have occurred? Thanks in advance
  2. New to me Cayenne 2008 base.  Tailgate assisted open/close works but lift does not, no sounds.  Very heavy lid.  Fuse 31 is good.  Same response with either door button or key fob.  I have gathered a lot of manual sections but no hint on diagnostics short of perhaps testing for voltage at hydraulic lift motor.  Presumably there's a relay somewhere?  Is an

    inexpensive OBDII adaptor / Torque Pro screen likely to show a fault?  No faults shown on dashboard.  Is there diagnostic documentation I can obtain?  Thanks so much in advance!

    1. Show previous comments  1 more
    2. Markotime


      I have only parts catalog, condensed service manual and owners man.  Nothing on diags, OBDII etc.  Thank you for the response! 

      I recall reading somewhere that rear hatch powerlift may be disabled due to low battery - just replaced the (10 year old!) battery.  The seller claims the lift worked fine before it was shipped to me.  ?? thnx



    3. Markotime


      So, what can I purchase or otherwise acquire that you suggest? thank you /mark


    4. Markotime


      Hatch power lift failure eventually traced to intermittent microswitch on upper latch, and top ball/socket

      of hydraulic lift cylinder having lost its retaining ring and becoming disconnected.  Not an easy one.

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