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Thread: P420 & P430 Copperhead ECMs

  1. #1
    Senior Tuner Mep_q8's Avatar
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    P420 & P430 Copperhead ECMs

    When setting the DTCs to no error reported, the code still lights up?

    When I open up the files again to see what's going on, I get random numbers in the place of no error reported, sometimes 4 and 6.

    Bader Norris
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  2. #2
    Potential Tuner
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    Go to the engine diagnostic option and disable the PCM from running the catalyst check. I would post a screen shot but I am on my cell phone.

  3. #3
    Tuner
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    I know this post is a bit old, but with the newer 2.25.100x I haven't had an issue with leaving the test enabled and just setting the dtc to no mil reported on my 13 gt
    Current toy- 97 SCSB OBS chevy forged 6.0/4l80 combo with a bit of boost..currently back under the knife

    To many previous vehicles to list

  4. #4
    Mine keep going back to the number 4. I don't have a MIL but I am having issues getting my catalyst and O2 Heater monitors to ready.
    Total Masshole.
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  5. #5
    HPT Employee Eric@HPTuners's Avatar
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    As of 2.25.1027, the DTC list has been updated and should now allow you to make the change you want, without reverting.
    Eric Brooks
    HP Tuners, LLC

  6. #6
    Quote Originally Posted by Eric@HPTuners View Post
    As of 2.25.1027, the DTC list has been updated and should now allow you to make the change you want, without reverting.
    Awesom, Eric! Thank you!!!
    Total Masshole.
    2013 F150 FX4 Supercrew Ecoboost - STOCK
    2013 Mustang GT Premium - Lots of Mods, 424 RWHP SOLD
    2009 Cobalt SS/TC Black Sedan
    227whp/224wtq Stock. Dejon CP, K&N SRI, Forge BPV, Catless, BadMab Catless DP, MPx 3" Catback, HPT Tuned 328whp/425wtq. SOLD
    2004 GTO Pulse Red 1 of 512 - R.I.P. 5/31/09

  7. #7
    Quote Originally Posted by Eric@HPTuners View Post
    As of 2.25.1027, the DTC list has been updated and should now allow you to make the change you want, without reverting.
    Hey Eric,

    Are you able to say what the number 4 and 6 it was reverting back to meant?
    Total Masshole.
    2013 F150 FX4 Supercrew Ecoboost - STOCK
    2013 Mustang GT Premium - Lots of Mods, 424 RWHP SOLD
    2009 Cobalt SS/TC Black Sedan
    227whp/224wtq Stock. Dejon CP, K&N SRI, Forge BPV, Catless, BadMab Catless DP, MPx 3" Catback, HPT Tuned 328whp/425wtq. SOLD
    2004 GTO Pulse Red 1 of 512 - R.I.P. 5/31/09

  8. #8
    HPT Employee Eric@HPTuners's Avatar
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    We didnt have those modes defined in the software, so when you save, it would revert back.
    Eric Brooks
    HP Tuners, LLC