P2563 error code, flashing coil light, flashing EML (engine) light

[Chainik]

What is the engines type code? From the description it sounds like a CE?? series with the electronic turbo actuator, the diaphragms on these split. There is no alternative to taking off the turbo and having a new actuator fitted, IF you can find someone who can/will do this or if they can even get hold of an actuator. Remove the vacuum pipe to the N75 valve and suck on the pipe, i.e. the actuator it is connected to, can you draw air or is there a vacuum resistance?

So, I've sucked on the hose and there appears to be vacuum resistance. I can see the piston move as my face goes red.

In any case, if this is the problem, any ideas where I can find a garage in Europe which will know what to do. I suspect even if I brought in a new actuator and asked a random garage to fit it, I would get a blank stare.

I guess I could always take it to VW and get a whole new turbo, but that is the absolute last resort...

Here are a couple of photos of the hose connecting the actuator and the valve. There are no hose clamps on this, so I am not sure if this could be the issue?

IMG_2746.jpgIMG_2747.jpg



Cheers!

[Crasher]

A CEBB engine then..... You need to check the turbo actuator diaphragm to see if it is leaking.

[Chainik]

OK, thank you. I am trying to find someone capable around where we are in Italy, but this is proving somewhat difficult.

I also forgot to mention that the brake vacuum pump is making a tapping noise on occasion (see related):
Unusual tapping noise

Could this be at all related to my turbo issue?

[Crasher]

Yes, the system is vacuum controlled and totally dependant on a good vacuum throughout the system, one leak anywhere can shut three systems down.

[martin1810]

Address 91: LT3 Engine Labels: Redir Fail!
Control Module Part Number: 076 906 022 N HW: 076 906 022 G
Component and/or Version: R5 2,5L EDC A020SG 7731
Software Coding: 0003032
Work Shop Code: WSC 00117 555 00000
VCID: 1E33E8DDC9E8DEB2B2-804B
1 Fault Found:


009571 - Turbocharger Boost Control Position Sensor Circuit
P2563 - 000 - Implausible Signal - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100000
Fault Priority: 2
Fault Frequency: 23
Reset counter: 255
Time Indication: 0


Freeze Frame:
RPM: 735 /min
Speed: 0.0 km/h
Voltage: 13.83 V
Temperature: 162.0°C
Lambda: -15.0 %
Bin. Bits: 00001110
Voltage: 1.520 V

This code probably has nothing to do with vacuum or turbo as such. It is a code that is not used on your vehicle as you do not have a position sensor. I suspect the designers are trying to tell you that the Atmospheric pressure and map sensors do not agree with each other. If this code appears on switch on but no other problems occur, I would ignore it for now. It only needs fixing if it is causing limp mode.

[Chainik]

Oh, very interesting... Would it make a difference I am driving 1-2km high up in the mountains?

[Crasher]

you do not have a position sensor

The CEBB engine uses a Mitsubishi Heavy Industries 49T77-07460 or 49T77-07535 which according to ETKA does not have a position sensor for the charge pressure positioner, a G581, BUT the wiring diagram on ELSA page 17 current tracks 215>217 clearly shows one, the pictures posted of the turbo show it has the composite bodied positioner and in the ELSA instructions for removing the turbo it states “pull off vacuum hose and connector from turbocharger”, a proper picture of the actuator would solve the problem. Chanick, can you PM me your UK reg number?

[Chainik]

Thanks Crasher, PM sent.

FWITW, the actuator on my van looks exactly like the one in the images above.

[Crasher]

Yes it is a CEBB engine as your ECU number indicated BUT it is a 2011, not a 2010 but ETKA FI suggestion infers that it has the non VNT turbo 076 145 702 C which is obviously wrong. The 076 145 702 C is the same as the later D and Q which is the one in the picture. The actuator can be replaced but it has to be set up on the bench, you need a turbo rebuild specialists help. http://www.be-turbo.com list the actuator under their part number 206208

[martin1810]

It seems I was wrong. I believe your vehicle uses an edc17cp20 ECU. If this is the case, it can produce this error code because of a possible Nox error (exhaust gas fault). My best guess is that the lambda regulation check is looking for a turbo actuator position so that it can calculated expected oxygen levels to determine lean or rich mixture. So when you switch on ignition the lambda check is failing because the actuator positioner is either not working or giving an out of range signal. Basically the ecu is trying to predict fuel air/ratio using turbo boost level. If the actuator does not give a position, the ecu cannot do its calculation. As long as this does not cause limp mode, I would ignore it. It should be ok to ignore the fault because when the engine is running the ecu can use other methods to calculate (probably turbo pressure) which do not rely on the actuator position.