16V ABF Cold idle problem

[technics100]

I got full VCDS today and scanned the car this evening, getting error code

00519 - Intake Manifold Pressure Sensor (G71)
            03-10 - No Signal - Intermittent

Does that indicate the vac line to the ECU?

[Screech16v]

As said replace your vac lines especially the one from back of the intake manifold through the scuttle to the ecu,then clear codes.

[Metallix]

Open the ECU up,  there is an internal pipe as the sensor is further inwards.   This pipe may be blocked or perished.



^ see the hose at the bottom of the picture?

[technics100]

I have 3M of pipe ordered, will take the ECU out and have a hoke at it.. Will also try and check with vag-com

[technics100]

Replaced the main vac line to the ECU, also did a few other lines with the 3mm hose.  Also cleaned the throttle body, ISV and adjusted the accelerator cable.. Hasn't done it since.. fingers crossed thats it sorted.. Now to sort that airbox..

[Screech16v]

Lets hope thats it