Ok, bit of a weird one for you but I'm pulling my hair out.... Background for you... I have a passat TDI 1.9 AJM(early 115 PD), which the turbo failed on - the impeller had touched the housing so was in a bit of a state, and making quite a bit of noise. So, following a stream of bad luck, including the replacement turbo number 1 being duff, I fitted another replacement turbo yesterday having cleaned the turbine side of the housing. Checked it all over and fired it up, worked for about 30 seconds until it chugged to death, now it won't start. I noticed that I'd connected a vaccuum hose to the EGR actuator which caused it to open fully, which would explain why it died, but having removed that it still wont go. Plugged VAGcom into it yesterday and it's coming up with the following code when cranking: VCDS-Lite Version: Release 1.1 Sunday, 22 May 2011, 17:35:55. Control Module Part Number: 038 906 019 CD Component and/or Version: 1,9l R4 EDC 0000SG 1042 Software Coding: 00002 Work Shop Code: WSC 05311 VCID: 5BC9146FDA2B 1 Fault Found: 19464 - Camshaft Position Sensor (G40): Signal Out of Range P3008 - 35-00 - - Now this would explain the non-starting, but whyt he hell would this suddenly have failed? Seems very odd to me.... Can anyone point me in the direction of this sensor coz I can't bloody find it. Either that, or can someone shed light on why this might have happened? I'm nearly at the point where I'm gonna scrap the f*cking thing Oh and PS. It does moan after cranking for a while that it has low oil pressure, but I guess thats to be expected as it's not run for a while etc.
http://www.myturbodiesel.com/forum/f5/mk-iv-tdi-will-not-start-run-1526/ Apologies, it was this "anti shudder valve" which shut, not the EGR
Oh, and, can anyone furnish me with a diagram of the Vac system on one of these cars? I need to make sure it's all hunky dory too. I have the turbo actuator connected to the N75, but what else connects to that as theres another outlet? There's another small valve at the top of the engine too which I beleive should connect to the anti shudder valve, does this connect to the N75 too?
id pull the connection and plug the hose for the EGR as that caused me a lot of hard start head scratching on mine.
I'd say you've probably disturbed the wiring plug for the crank sensor whilst fitting the replacement turbo. I think It should be on the front of the block just to the right of the oil filter housing etc. Follow the wires from it up to the plug. The n75 should have a connection to the airbox, a connection to the vac pump and a connection to the turbo actuator.
The airbox?? Really? Why? Theres a vac pipe that goes to the carbon canister so im guessing thats the one.
The pipe that goes to carbon canister or airbox is just to make sure that no dirt goes into the n75 when it changes position to let atmospheric pressure in. If it got blocked up then the valve wouldn't be much use.
Do you know which port what plugs into? Assume the vac pump feed goes in the top, but does it matter which goes to where on the underside?
http://www.seatcupra.net/forums/showthread.php?t=207787 Take a look at that and see if you can work it out.
if your turbo gave up, did it loos any oil in to the sytem? by default if the vacumm lines are left off ASV and EGR all rest in a engine start position with 30second of running is there any oil in the intercooler or the exhaust coaking the breathing of the engine??
TBH i have a feeling the timing may be out on it but it is getting checked on thursday so will hopefully know something by then
If the old turbo blowing filled a cylinder with oil and hydrolocked it that may make the timing jump.....
