You O2 sensors need to be changed, and the #2 plug being wet doesn't help either, you need to do a compression check on this motor!
P0172= System running rich bank 1
P1132= Lack of heated O2 upstream lack of switching bank 1, that's the code indicating the O2 isnt working, or gas is getting into the exhaust system making the sensor stay on detecting rich. Wet with gas? or oil? If gas check fuel pressure and fuel pressure regulator like this:
https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm
Go here and checkout our video.
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Monday, July 12th, 2010 AT 4:18 PM