Thread: Still not getting turbo boost.

Hi y'all,
Been reading your threads and there is a lot of interesting stuff on here, has helped me with some problems. My 99 Disco is running a lot smoother thanks to your trials you have put on here.

I still have no boost and have just this morning, disconnected the vacuum line from the waste gate actuator and disconnected the vac line at the modulator that comes from the inlet and plugged it in to the waste gate actuator.

The result was that after 2000 rpm, it began to leap frog and or pig root down the road, as if the waste gate was going on, off, on, off etc. I then took it down to the local garage and put some air into the actuator and the waste gate was opening and closing, so it appears to be working ok.

Modulator is sucking but I don't know if it is enough.

Perhaps someone might be able to shed some light on this and point me in the right direction.

Thanks

D2D

You'd get the same kind of kangarooing you saw with the hose disconnected if the pipe was actually blocked.

Turbos don't make boost with the engine unloaded so doing experiments in the drive is pretty much leading you up the garden path.

The symptoms sound like the wastegate sticking partly open.
If you can hook up with a nanocom owner and do a session recording fueling inputs you'll be able to pinpoint the cause pretty quickly.