I would wait a few days before changing a north star tps. when I had my N* tb, I changed the TPS like 3 times. it would fix it temporarily and then the problem would come back and I would not do anything about it and it would go away. not sure really what the problem was.
What was your TPS doing?
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00 Grand Prix GT, top swapped, .020 FMP, GT1 Cam, SFI Crank pulley, SSM90, 3.3 MPS, ZZP ported Gen 3/LIM, ported heads, #90's, N* TB, SLP Intake/Headers/Catback, F-body brakes, KYB AGX, Aeroforce, AEM, 93 octane.