[ainarssems]

Originally Posted by David's8

The point at which the Stage 2 manifold valve come into operation is around 3360rpm and the torque figure falls away if the actuator doesnt come into operation.

See: http://forums.audiworld.com/showthread.php?t=2801728 for a good run around this subject.

That's for petrol V8, his is 4.0TDI with 2 completely different manifolds.

Hi everyone,
My 4.0lt D3 is having a few issues at the moment and I'm wondering if you guys can help me sort her out. She was down on power the other day and then the coil light started flashing. A short while later the MIL light came on as well. This makes her low on power and means I cant overtake anything as she just runs out of steam at just over two and a bit thousand revs.
I've done a scan and the results are below.

It's either wiring fault or faulty MAF and boost sensor in which case they will need changing. On the manifold it is either clogged and does not move freely or electrical problem supplying incorrect reading.