S4 Remap = new problems

[Geeman]

I've just had the ECU remapped. Feels better and more responsive... but, when it gets to 4000rpm it misfires and has trouble getting past there.

The VagCom reads a few codes, as follows:

17800 - camshaft position sensor bank 2 (G163): Open Short to Plus

P1392 - 35 - 00

17965 - Charge Pressure Control: Positive Deviation

P1557 - 35 - 00

Where is the cam position sensor on bank 2 located so I can whip it out and check for 'stuff@ (or replace it)

Also, what does the second reading mean?

 

[aragorn]

Second ones a boost leak. Unplug the N75 and drive like a granny until you fix it, or you'll be replacing the turbos.

Common places are the throttle body boot, and the F hose. Worth pressure testing the whole intake though. Who mapped it? the well known S4 tuners would typically have boost leak tested the car before going ahead, and for good reason.

Bank 2 is the left hand bank (passenger side) The cam sensor is mounted on the rear of the cylinder head, on the end of the intake cam. Check its plugged in properly i guess.