Swapped bumpers on the GTP, much better. Checked all the wheel hub wiring connectors because of the C0405 ABS code - nada, looks like I'll be replacing one. Tried to figure out where the boost solenoid the P0243 code references is at so I can see if there's something up with it, or maybe need a new one. Brother and I swapped out his rear O2, and he did the wheel bearing on his (my old) Regal. 3 out of 4 dash lights are off now, lol. Helped my other brother work on his 6x6 Army truck some too.
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