Vehicle & Technical > Discovery

V8 re-build

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Range Rover Blues:
Actually I'm not too surprised, the idle sytem on an EFi is controlled by a stepper motor, the throttle plate shuts completely, unlike a carb, so you get much higher "pump losses" with an EFi as the idle circuit will shut when the engine is over-run ie engine braking.  The throttle plate does make it harder to control on LPG though unless you have a sequential system, so I off-road on petrol.

Bulli:
Thanks , i knew there had to be a technical explaination. :D

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