Alkraut:
I pulled the codes myself, all were OK -- KOEO, continuous memory and KOER. The UIM is sparkly clean, EGR passage included as well as the inside of the EGR itself and the tube that connects it to the exh system (rechecked them all this AM). I've had the UIM EGR passage problem before, so I've seen those codes and know what the UIM passage can look like. The killer here is that the PCM is saying that everything is hunky-dory.
I would think that if it were one, or both, of the O2 sensors, that would show up in the continuous memory DTCs or in the KOER tests - nada.
Kurt
