ive just put a new battery on my RRS and the 400a mega fuse had blown which can only be due to cranking to many times or boost pack/jumpleads in my opinion.

ive cleared all the fault codes and now it spins over fine but will not fire.

the only fault code is showing P0191-23 ?

now there is no pressure at the schrader valve, ive put more diesel in as it is parked on a slope and the guage was showing between empty and 1/4 tank.

has anyone got any suggestions of where to start please

Last edited by Tobias275 on Sat Jan 04 2020 7:06pm. Edited 2 times in total

Also is there a way of raising the suspension without the engine running ?

This is what the code brings up so try fuses to start

Faulty fuel pressure sensor
Faulty fuel pressure sensor circuit
Faulty fuel pressure sensor connector
Faulty fuel pressure regulator

the fuel fuse under the bonnet is ok power coming in and power coming out

how do i check if the pressure sensor is faulty or not without buying a new one?

Also, Ive just removed and replaced all 8 injectors to do a compression test. prior to this it started fine (well okish hence removing the injectors).

There was no issue with the fuel pressure at the Schrader valve or injectors prior

thanks in advance

Last edited by Tobias275 on Sun Jan 05 2020 11:28am. Edited 1 time in total

Not 100% but with ignition on is there any pressure at valve or can you here pump start when key first turned on

theres no pressure at the Schrader valve when initial ignition or whilst cranking, also i cannot hear the pump under the seat

Start looking at the pump then and power supply to it

if the pressure sensor is faulty would that stop the LPFP from firing up?

ive also read that the Fuel Filter can cause this problem?

it just seems strange to suddenly stop after only removing and replacing the injectors

You never mentioned the injectors before

apologies, i edited the post earlier to put the fuller picture as i realised people need all the info

geoffsnook wrote:

You never mentioned the injectors before

make sure you have everything you took apart back in its right place as you say it was ok prior to you removing the injectors

checked everything at the front is all connected, power to both sides of the fuse and relay working. no noise from the tank area on initial ignition so went to check the continuity at the pump.

so, after taking the back seat out i now know that the tank has to be dropped from underneath.

its parked on my drive which is about 35-40 degree slope and on its bump stops, does anyone know how i can raise the suspension without doing any damage ?

Have a look at this may help

https://www.disco3.co.uk/forum/manually-ra...automobile

thanks for the link, i checked myn and the tailgate door was programmed to open.

i tried following the steps in the video but it never worked due to the engine not starting i think.

helped my pal with a disco 3