17705/P1297/004759
From Ross-Tech Wiki
17705/P1297/004759 - Pressure Drop between Turbo and Throttle Valve (check D.V.!)
Possible Symptoms
- Power Loss
Possible Causes
- Leaking hoses and/or pipes between components
- Check Boost Pressure Control Valve (N249)
Possible Solutions
- Check hoses and/or pipes between components
- Check / Replace Boost Pressure Control Valve (N249)
- Check / clean Throttle Valve, do Throttle Body Alignment
Special Notes
- Did anyone install an extra (wrong) dump valve?
- When found in the NAR 2.0T (BPY) check RVUTB: 01-09-03 or 2018919 for updated Crankcase Breather Valve
- If the breather valve is faulty, full engine vacuum is typically found when removing the oil cap at idle.