Technical 1.9 JTD enine stalls after minutes

[TomKruis]

Hello, i have a strada 1.9 JTD wich stalls after minutes of running.
Got it to a garage they replaced rail sensor, crank shaft sensor and LP electrical fuel pump. They offered me a replacement of HP fuel pump (mechenical) but for €2000,- so i got it to another garage.

Need some help with the diagnostics cause i'm not so sure replacement of HP fuel pump will solve the problem

Got these error codes, translated by myself..
From the rapport:

P1671 drukregelklep (pressure regulator valve (?) -component defect
p0191 drukbewaking (pressure guard ) rail - comp def
p0115 koelmiddel (cool fluid) temperatuur sensor-comp def
p0480 ventilator 1 - comp def
p1612 verwarming brandstof (heating fuel) filter- comp def
p0215 elektrische brandstofpomp (fuelpump) -comp def
p1671 drukregelklep (pressure regulator valve) - signaal niet logisch

Got an image of a graph which shows nominal rail pressure 372 bar vs measured rail pressure 379 bar
https://imgur.com/uc3hJmj

 

[Bernievarian]

Hi Tom,

all those errors came together ? I'd bet the "drukregelklep" is the culprit, if so and unless it's built in the HP fuel pump, replacing the last one wouldn't change anything. Hard to tell without seeing the car (and measuring the right stuff...)

BRs, Bernie

 

[Bernievarian]

BTW, here's how it looks and works ...

BRs, Bernie

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