I recently replaced the MAP sensor, AIT sensor, cleaned the throttle body, and cleaned the MAF on my '01 A4 1.8t. Prior to this, the car was running perfectly but it had a small leak at my power steering pump banjo bolt, so I figured I'd replace a few sensors and clean the throttle body while I fixed the power steering leak.

After doing the above items, and performing the TBA via VAGCOM, I fired it back up and it was idling like garbage! Felt like misfires, but when I pulled the codes I had only a single P1297. Looking up that code seems to point to N249, DV, vacuum leaks etc, but the car was running just fine prior so I doubt it's those. I tried swapping the old MAP back on, but same code and rough idling.

I did push on the throttle plate a little while cleaning (drive by wire), could I have messed it up? It completed the alignment just fine...the MAF also had a little rust on the sensor surface and it's the original MAF...would a bad MAF cause this?

Any help would be appreciated!

Thank you