hey everyone i have a 2000 1.8t quattro i am having alot of problems with hesitation and sputtering i hooked it up to the vag com and got the following fault codes

VAG-COM Version: Release 409.1-S


Chassis Type: 8D - Audi A4 B5
Scan: 01,02,03,08,15,17,25,35,45,55,56

-------------------------------------------------------------------------------
Address 01: Engine
Controller: 4B0 906 018 Q
Component: 1.8L R4/5VT G 0006
Coding: 07251
Shop #: WSC 06335
17 Faults Found:
16725 P0341 Camshaft Position Sensor Circuit - Out of Range/Performance

17536 P1128 Long Term Fuel Trim - System too Lean (Bank 1)

17884 P1476 EVAP Emission Control System L.D.P. - Malfunction/Insufficient Vacuum

16826 P0442 Evaporative Emission Control System - Leak Detected (small leak)

16684 P0300 Random Misfire Detected - Any Cylinder

18014 P1606 Rough Road Spec. Engine Torque ABS-SG - Electrical Malfunction

16825 P0441 Evaporative Emission Control System - Incorrect Purge Flow

17833 P1425 Tank Ventilation Valve - Short to Ground

17956 - Boost Pressure Regulation Valve (N75): Open Circuit
P1548 - 35-10 - - - Intermittent


17829 P1421 Secondary Air Injection System Control Valve Circuit - Short to Ground

17522 - Oxygen (Lambda) Sensor: B1 S2: Internal Resistance too High
P1114 - 35-10 - - - Intermittent

16486 P0102 Mass or Volume Air Flow Circuit - Low input

17697 - Boost Pressure Control Valve (N249): Short to Ground
P1289 - 35-00 - -

17880 EVAP Leak Detection Pump:short circuit to ground P1472 - 35-00 - -

17525 - Oxygen (Lambda) Sensor Heating Circuit: B1 S2: Short to Ground
P1117 - 35-00 - -

17843 - Secondary Air Pump Relay (J299): Short to Ground
P1435 - 35-00 - -


Readiness: 0010 1001

any ideas where to start?

 

If you've not done so already, clear codes and see which ones come back and run adaptation diagnostics to set readiness codes.

 

you very likely have a vacuum leak, I would also assume your suction pump is clogged, you will need to clean this first and try again with codes. I believe the tech section tells how to clean this.
but also clear codes and see what come back, many of them could be do to a dead battery at some point.

 

VCDS-Lite Version: Release 1.0
Wednesday, 11 August 2010, 16:57:16.


Chassis Type: 8D - Audi A4 B5
Scan: 01,02,03,08,15,16,17,25,35,37,45,55,56,57,67,75,76 ,77

-------------------------------------------------------------------------------
Address 01: Engine Labels: Redir Fail!
Controller: 4B0 906 018 Q
Component: 1.8L R4/5VT G 0006
Coding: 07251
Shop #: WSC 06335
4 Faults Found:
18098 - Malfunction Indication Light (K83): Electrical Malfunction

16725 P0341 Camshaft Position Sensor Circuit - Out of Range/Performance

16684 P0300 Random Misfire Detected - Any Cylinder

18014 P1606 Rough Road Spec. Engine Torque ABS-SG - Electrical Malfunction

 

I changed the turbo, cleaned intake and intercooler and all lines and cleared all codes, i still have these 4,

Im thinking it must be the camshaft position sensor, napa told me it takes 2 and they are 130$ a piece, where is the 2nd one located? i know the one on the front by the timing belt. also is there any place online to get this cheaper?

Thanks