I drive a 2001 Audi A6 2.7tt with about 85k on it. I recently washed the engine bay on the car because of some oil leakage. Yes... Found out this was a bad idea to do so after the fact. I washed it up then took it out for the evening. got home.. it sat overnight. about 11am the next day I left home with it and it started acting up.

I went and ran a scan on it and got the following P codes. It runs just like when I had ICM go out. so im wondering if that might just be the same problem. Here are the P codes........... Any Ideas?

P1139. Long term fuel trip add. Fuel bank 2 system too rich
P1423. Bank 1 air flow too low
P1411. Bank 2 airflow too low
P1606 Rough road spec . Engine torque abs-ecu. Electrical malfunction
P1137. Long term fuel trim add. Fuel bank 1. System too rich
P1131. HO2S 1 bank 1 heater resistance too high
P1113. HO2S 1 bank 1 heater resistance too high
P1296. Engine cooling system malfunction
P0304. Cylinder 4 misfire detected.