Question about Ford F

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GDAY. have an au falcon (aus). on gas, getting error code 79 then 74 ? cheers

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  • mickxr8351 Aug 28, 2010

    car was running fine then stopped. traced fault back to corroded wire to lockoff solenoids. fixed that. car started ok on petrol but struggled on the change over to gas. got another convertor today but just changed the `stepper motor` over out of curiousity. it ran but not very well, the longer i left it running the worse it got.( the ecu relearning ?) then got error beeps and codes

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Hi! Do you feel something unusual when the car is running? Hope to know more. THanks!

Posted on Aug 28, 2010

  • 6 more comments 
  • dj_relly999
    dj_relly999 Aug 28, 2010

    Alright, as a first course of action please try this. Open the hood and remove the positive battery connector and let it sit for atleast 10mins., this should reset the system and get rid of the fault code.

  • mickxr8351 Aug 28, 2010

    just disconnected battery.

  • mickxr8351 Aug 28, 2010

    just gonna rug up,grab the laptop and head out to the car

  • dj_relly999
    dj_relly999 Aug 28, 2010

    alright, you do that.

  • mickxr8351 Aug 28, 2010

    in car atm. starting on petrol,no error codes but switch to gas and it dies. wheni first swapped the stepper motor it ran but not now ?

  • dj_relly999
    dj_relly999 Aug 28, 2010

    Is the stepper motor new or from surplus?

  • mickxr8351 Aug 28, 2010

    original one branded `phiips`. one on there now is 2nd hand `vdo`. douesnt look very old

  • dj_relly999
    dj_relly999 Aug 28, 2010

    It could be on the switch valve.

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