i went through this last year low pressure and no start was about to change the high pressure relief valve at the back of the high pressure pump when a diesel engineer told me to do a leak off test, one faulty injector later runs as sweat as, you wont get the high pressure if its leaking back...

if he has a pressure sensor issue he wont read any pressure with diags,( and an immoberliser issue in the ecu) id go for the leak off test easy to do, its fuel air and compression despite all the sensors

but that will only tell him he has a pressure problem which he already knows

he needs the right software for that, besides hes already been told theres no pressure, just hasnt diagnosed were its going, becoming a shot gun repair ( unnessesery ecu mod )

there are lots of reasons why you cant register fuel pressure, the imoberliser isnt one of them, there are 3 pumps in the system any of which could cause no fuel pressure then there is the fuel pressure relief (mechanical and not monitored) and faulty injectors, the fact you have a code from the...

diesel is crank disabled, petrol is fuel disabled

i had just one faulty injector which prevented the fuel rail from getting to pressure, no pressure and ecu doesnt fire injectors

you dont need to have it running just cranking for a leak off test, there are plenty of utube videos on how todo it plus a leak off kit on fliebay is about £35

i would do a leak off test before doing the fuel sensor as a faulty injector stops it starting ( and if it was cranking it wasnt the immobiliser)

there is a whole sequence of events that have to happen before the diesel will start (cant say about the petrol) any one of which would stop the starter from working

i some how think you have been barking up the wrong tree with the ecu being the problem

well that solves the problem of the clicking on my friends one, let us know how you fix it please

for the price of a rocker gasket change it and find out

i did that last time a right pain, the trailer is cheaper

i have insurance on 4 different cars, wasnt going to insure p38 till it had mot

i didnt its what the mot guy said when it failed

thats why i have a trailer

everything works on mine as regards seats steering column mirrors all adust with different keys and still an unused plug

i have a 4.6lt thor which failed on emissions, apparently you have to drive a t least 46 miles for it to recalibrate if the battery’s been off, bit difficult when it has no mot tax or insurance

thats strange i have working memory seats and the same plug not attached to anything