Fuel pipe and filter replacement Defender 90

Splashman237 said:

The boost diaphragm housing is on the injector pump? Yes ?. If I unhook the pipe from pump to turbo, will I see fuel at idle or do I need to rev or hav it under load ?

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Boost diaphragm housing is under the injection pump with the cover facing the engine block, you will need to lie under the vehicle to look at it.

Two pipes go into the housing, just remove the one that says Air, cast into the alloy. If the pipe is full of fuel, your diaphragm is split.