P0148 all by itself is either fuel quality or crank / cam sensor signal noise.
Since it happened with a program delete, I would clear it and see what happens. If it comes back and you have neither of those problems, you need a pcm reflash or replacement.
Don't panic, I think it'll be because of the tuner... if you are set on removing the tuner, you will probably have to have the pcm reflashed with "as built data" at a dealer.
Does it run well with the tuner removed? If so, I'd ignore It
P1000 is a standard code that says it hasn't completed the monitors yet. (ignore it) it means someone has recently cleared the codes, or the pcm has reset it self, or the batteries were disconnected
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