So last night around 9pm I washed my car and also hosed off under the hood since I hadn't cleaned that in a long time. Purposely last night, so engine would dry for 11 hours before I had to use the car at 8am this morning. No harsh chemicals, just that weak foamy stuff. I only sprayed that on the valve covers and intake manifold. Then I hosed it off with VERY little pressure. I had the nozzle on 'shower' mode with the valve barely open. Seriously less pressure than a bathroom shower.
Now this morning, I start the car and it idles very rough and gives me the 3 beeps to let me know its not happy. The ABS, ESP and EPC lights are on. I VAG'ed it and got-
17966 - Throttle Actuator (G186): Electrical Malfunction
P1558 - 35-00 - -
I then checked all connections I could see in the TB area, even removed & reconnected a few. What cables or connectors should I be looking at? Or is something wrong with the TB itself?