I need to smog my 04 gt and for the life of me I can’t get the catalyst monitor to set. All the others are setting perfectly fine but this one refuses. I have no check engine light or codes, catalytic converters installed and I’m on a stock tune and it passed smog every time when I used to drive it, but I made the mistake of letting my battery die so all the monitors reset. Anyone have tips on how to set it? I’ve tried all the drive cycles it says to do but I’m having no luck.
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