Engine p1260/p0355/p0358/p0455 hope I did not missed everything. help plz

Discussion in 'SN95 4.6L Mustang Tech' started by ked263, Feb 4, 2013.


  1. ked263

    ked263 Member

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    hi, as some might know, I have been working on my car to restore it for the last year.
    finish the bodywork, and most of the engine, and now working on the suspensions

    ANYWAY.
    I bought a diablo to read my errors to fix my service engine light

    and for some time I had the p1000 for not have a complete test. but I was working on the car and driving the same time. " my only car "

    anyway, I was installing some gauges into the car, one them was a digital tach , and I hocked it to 2 wires behind the cluster, non of them worked, " then knew I will need a tach adapter. " and I tried was about to hook it to the NEGATIVE wire of the coil " did not do this yet "

    BUT what I did was taking off the 2 coils, "being an idiot" I forget the switch of the car...
    nothing BIG happened back then,...

    anyway, after I finish the test these codes came,..
    p1260/p0355/p0358/p0455

    to help you read ...
    RED: The Error
    BLUE: When did it start
    ORANGE: Question

    p1260: Theft Detected - Vehicle Immobilized , " since I bought the car, the theft light blinks every now and then. but it's working just find ."

    anyway to fix this ?

    p0355 : coil E
    p0358 : coil H
    these two I think they came because I took them out while the engine is running, and put them back.

    now, the coils I took " if you are facing the car, the right ones, the first and the last one "

    now I again rested the codes, will they go , or did I missed up something that will need fixing ?

    p0455 :Evaporative Emission Control System Leak Detected (no purge flow or large leak)

    well this one I don't even know where to start looking for, anyideas ?

    Thanks in advance :D
  2. joshjwc9

    joshjwc9 Active Member

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    The coil or misfire codes, p0355 and p0358 will be because they were not hooked up and the car detected a misfire/no fire.

    The p0455 evap leak is that there is a massive leak somewhere between the vent on your fuel tank to the vapor canister including the valve could be stuck open or shut, or a hose is cracked which happens eventually to the OEM hoses.


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  3. jcgafford

    jcgafford Well-Known Member

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    disconnect the battery and turn the headlights on. leave it for 10-15 minutes. hook it back up and rescan. this resets the computer, it will get rid of bogus codes.

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