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  • Dumb Question time...

    On my Stang I just got, def has a tune. After two months, the check engine engine light came on. Says PCM (Powertrain Control Module) has a fault. The tech was afraid too clear the code as it may erase the tune. He said disconnect the battery for 20 mins and then see.

    So the question is, its it easy to erase a tune or do you have to deliberately go in with a tuner and swap or erase it? I do not have a handheld tuner, but do have this weird block that plugs into the obd port under the dash that was in the glove box when I got the car.



  • #2
    Post a pic of the block, could be one that goes to your phone? On my old GT the handheld tuner would copy the stock tune to it and replace with the aftermarket tune... Not sure how yours will handle it if you don't have the tuner.
    Originally posted by stevo
    Not a good idea to go Tim 'The Toolman' Taylor on the power phallus.

    Stevo

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    • #3


      Just saw it said Iphone, never heard of such a thing

      Comment


      • #4
        So yeah, your stock tune hopefully is stored on that, download the app and see what's on it.
        Originally posted by stevo
        Not a good idea to go Tim 'The Toolman' Taylor on the power phallus.

        Stevo

        Comment


        • #5
          I'm gonna have to report this to Ford.

          Comment


          • #6
            Originally posted by bird_dog0347 View Post
            So yeah, your stock tune hopefully is stored on that, download the app and see what's on it.
            Unfortunately, I'm not cool and have a Android

            You think clearing the code might wipe the current tune?

            Originally posted by Craizie View Post
            I'm gonna have to report this to Ford.
            whaaaat? what about my 15 year bumper to bumper warranty!!!

            Comment


            • #7
              Im not an expert, but it looks like the shop that tuned it or owner has the original hand held tuner and that thing is just a transmitter that hooks to your OBD port and sends the info to a I-thingy.
              From my understanding you should be able to clear that code and be ok. The only way to unload a tune is to have the handheld device that was used to mate and un-mate if that makes sense. Not to say that a shop with SCT software can't go in and unload or make changes. You will need the hand held SCT tuner tho. I think that think just sends logging info to a Ipad and maybe alow you to make changes, but not sure about if you can unload a tune with it.
              Originally posted by Silverback
              Look all you want, she can't find anyone else who treats her as bad as I do, and I keep her self esteem so low, she wouldn't think twice about going anywhere else.

              Comment


              • #8
                I think that actually does the tune as well, pretty sure you don't need any additional handheld.
                Originally posted by stevo
                Not a good idea to go Tim 'The Toolman' Taylor on the power phallus.

                Stevo

                Comment


                • #9
                  Originally posted by bird_dog0347 View Post
                  I think that actually does the tune as well, pretty sure you don't need any additional handheld.
                  I thought so, but I don't think it can remove the tune, it might like I said, tho it looks like just a transmitter of some sort that can clear codes and give real time data logging.

                  I have an SCT tune/tuner for my '20 5.0. HPP dyno tuned it and it is paired/married to my car. If I want to make small changes I can, but if I want to add a different CAI, injectors, I need the handheld and it you want the most power, a dyno tune is needed to make the most power and be safe.
                  On my '12 5.0 it had an older SCT that only allowed 5 tunes, so not sure what year his is, so after this post I need stop cause like I said i'm not an expert.


                  I guess I have become a checkbook/credit card racer.
                  Originally posted by Silverback
                  Look all you want, she can't find anyone else who treats her as bad as I do, and I keep her self esteem so low, she wouldn't think twice about going anywhere else.

                  Comment


                  • #10
                    Originally posted by Rick Modena View Post
                    I guess I have become a checkbook/credit card racer.
                    #metoo
                    Originally posted by stevo
                    Not a good idea to go Tim 'The Toolman' Taylor on the power phallus.

                    Stevo

                    Comment


                    • #11
                      Originally posted by Rick Modena View Post
                      I thought so, but I don't think it can remove the tune, it might like I said, tho it looks like just a transmitter of some sort that can clear codes and give real time data logging.

                      I have an SCT tune/tuner for my '20 5.0. HPP dyno tuned it and it is paired/married to my car. If I want to make small changes I can, but if I want to add a different CAI, injectors, I need the handheld and it you want the most power, a dyno tune is needed to make the most power and be safe.
                      On my '12 5.0 it had an older SCT that only allowed 5 tunes, so not sure what year his is, so after this post I need stop cause like I said i'm not an expert.


                      I guess I have become a checkbook/credit card racer.
                      Mines a 12 too. I wish mine came with the handheld, as when I had my Shelby, learned they were married to the car.



                      Originally posted by bird_dog0347 View Post
                      #metoo
                      Luckily we've come to the age in our careers where we can afford to be nowadays, back in the day, I learned to work on my car because I couldn't afford to pay someone.

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                      • #12
                        Clearing codes shouldn't have any impact on the tuning side of things. I've cleared trouble codes on dozens of tuned vehicles over the years of being an auto mechanic

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