right i know they work on compression rather than a spark to aid combustion but how does the throttle work as there isnt a throttle body on a diesel ?

petrol easy the wider the tb is open the more power you doth make but in a diesel what does it control the injectors ??

http://auto.howstuffworks.com/diesel.htm

petrol easy the wider the tb is open the more power you doth make but in a diesel what does it control the injectors ??

Just injects more diesel - but still look at Jon's link, it'll give you a good understanding...

Rob.

yeah just read it but knew most of that bit i was just wondering what that right pedal was connected too even tho it is drive by wire

Oh right...yeah, it's just connected to the injectors, though there's usually some wires and a ECU between them...

Rob.

thank you i deduced it must be as well there was no other sensible place for it to be connected too