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    Senior Member kingls1's Avatar
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    1999 Trans-Am, 2012 Sonic

    Code help please

    I just finished with my header install and popped a few codes. I installed new headers with EGR provisions, Y-pipe with resonators instead of cats, Magna flow catback, SLP lid with blackwing filter and smooth bellow.. After running got some codes had a buddy stop with his code checker and found PO420-bank1 and PO430 bank2....did some research and showed cats were not working(resonators now) question is these codes coming from having resonators instead of cats? Will it hurt to run it untill I get a tune from Frost and will the tune take care of these codes?? Also my radio is now showing LOC and will not turn on(battery and PCM were out for install and wire mod) Help please

  2. #2
    Senior Member kingls1's Avatar
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    1999 Trans-Am, 2012 Sonic

    Question was answered in the general section so this thread can be removed..

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