Motorhome Forums, Motorhome Discussion, Motorhome Chat - View Single Post - What wire is the positive feed for the fuel pump on Relay/Boxer/Ducato??

View Single Post
post #6 of (permalink) Old 17-05-2020, 14:43
Senior Member
rayc's Avatar
Join Date: Jun 2008
Location: Corfe Mullen, Wimborne Dorset
My Motorhome: Pilote 740C Sensation
Posts: 7,757
Thanks: 67
Thanked 280 Times in 255 Posts
Personal Aire
Originally Posted by boxerconvert View Post
Do we know if the inertia switch interrupts the supply of the pump in the fuel tank or the pump in the engine? If it is for the pump in the fuel tank then I guess it wouldn't make any different installing a kill switch at the inertia switch or the fuel tank pump.
To answer your question when the inertia switch operates the negative supply to the tank pump is disconnected.

I am no expert but am certain as the low pressure pump in the tank is electric whilst the high pressure pump at the engine is mechanical e.g it is driven by the timing belt on the Fiat Ducato 2.3.

Last edited by rayc; 17-05-2020 at 14:57.
rayc is online now  
For the best viewing experience please update your browser to Google Chrome