VCDS Engine error please help 1.8T


Registered User
Hi all,
Please can you help me here. My car went a little lumpy when I pulled off ..Also feels likes the car should be faster.

Here is what I found .

17522 - Oxygen (Lambda) Sensor; B1 S2: Internal Resistance too High
        P1114 - 008 - Implausible Signal - Intermittent
17705 - Pressure Drop between Turbo and Throttle Valve (check D.V.!)
        P1297 - 001 - Upper Limit Exceeded
16891 - Idle Control System RPM: Higher than Expected.
        P0507 - 001 - Upper Limit Exceeded - Intermittent
17544 - Fuel Trim: Bank 1 (Add): System too Lean
        P1136 - 001 - Upper Limit Exceeded - MIL ON

Hope someone can help ,,


Registered User
I have checked the pipes and car't see any leaks .. Would it not be the PVC ?

Also what pipes would this be ? Hard to see things on this car :(



Registered User
You have to check pipes from turbo to front cross piece under rad then to intercooler then from intercooler to plenum, you should be able to here a shushhing sound when you boot it , that's the leak,if not check dump valve and vac pipes although I'm pretty sure you got a leak on boost pipes , check the intercooler its on p/s at front below headlight!


Registered User
Where are you? If your anywhere near me I can take a look, I'm not far from Derby.


Could this be linked to the little one way valve that sits in some small bore pipe work under the inlet manifold, when mine went it brought up similar codes.

Paul @ Unit 9 Remaps

Registered User
No good saying you checked the pipes for boost leak, hear this to many times. Proper leak test needed


Registered User
Yeh I have checked the pipe but I do need a test .. how do I do this test .. I have told 3 diffrent things so far ..

& I forgot what this is called but it had 3 pipe going to it for the turbo boost