2008 407 2.0 HDI no power to injectors

[Dewald]

Good day

First time ever that I'm using this platform so please excuse me when if I did this wrong. I hope you guys can help me I'm kind of desperate because this is my only car.
So a couple of weeks ago the car would not start it only made a clicking sound, so i cleaned the battery points and tested the starter, all checked out good. But it only does it once so a week so i will replace battery, I'm only mentioning this cause it all goes down hill from this point. a week ago i got the service package and started to service the car oil filter, diesel filter, air cleaner end new oil. it started fine after the service and i did a service light reset, i took the car next to garage and washed the engine bay, not with a high pressure washer but with a spray bottle and some cleaner and rinsed it off with a hose pipe. After that the car started and i drove it back in to the garage. After 2 days off sitting I started the car and reversed back to gate and it just died ( crank no start) so pushed the car back to garage and checked the following

No 12v on live line to injectors (even when i crank)
Fuse 10 checked 12v both sides.

So i wen and ordered a obd2 scan tool konnway kw850. gives the following codes P0183,P1351 and P1598. So i cleared the codes and they never came back even after 3 days of working on the car. There is no fault codes on injectors even if they are not receiving any power so i guess the car knows it but some other issue is letting the car not sending power to the injecters. hence the no fault codes on injectors. it also shows a warning light on the LCD screen i will attach a picture.

What faults will cause the ECM not giving power to the injector? since im not getting any codes after erasing.
the old ones.
Any help in the right direction will be appreciated.

[GiveMeABreak]

Please provide your VIN (please post your VIN in full without spaces - it will be automatically masked from public view after submitting your post & will only be visible to staff), so I can relate the codes to your engine ECU.

It's possible you have gotten water into the engine ECU or other electronics - it's a bad idea to wash the engine bay area with water - it's asking for trouble. You should only wipe off dust and dirt with a cloth and suitable cleaner, but never use running water as it'll run down onto cables and find its way into the plugs / connectors / or worse the sensors / ECUs.

[Dewald]

Hi, thank you for you reply the vin no. VF3**************[VIN obfuscated, can be read by forum staff].

[GiveMeABreak]

Here's what I have on those codes:

P1598: Cooling circuit by-pass electrovalve (No further info)

Fault Code:	P0183
Description of Fault:	Diesel fuel temperature signal : Short circuit to positive or open circuit. The voltage of the signal of pressure in the fuel high pressure common injection rail is higher than 4,92 V for 3 s.
Conditions for Fault to clear:	Use of fuel temperature replacement value: 90 °C.
Downgrade Modes whilst Fault is active:	-
Symptoms:	Lack of power Jerking/stalling
Suspect Areas:	Electrical harness Fuel temperature sensor Engine ECU

This one is common and you can generally ignore it as the glow plugs are only really used in very extreme cold and to assist with regeneration when required by the engine ECU:

Fault Code:	P1351
Description of Fault:	Pre-heating relay circuit: Coherence; Relay supplied and glow plugs not supplied. The information from the preheating control unit indicates that the relay is open even though the ECU commands the closing of the relay for 5 seconds.
Conditions for Fault to clear:	Ignition on
Downgrade Modes whilst Fault is active:	-
Symptoms:	Lack of power Noise Jerking/stalling Starting problem
Suspect Areas:	Pre-heater plug Electrical harness Pre/post heating relay

[moizeau]

Regarding the clicking noise from the starter, does it only do this with a warm engine?
Ignore the P1351, unless you live in Siberia, it's very common and many of us have it. It won't hinder starting unless your in -10 and below temps.

[Dewald]

Hi thank you for the reply. No the car did it enytime its wants, sometimes it wil go a day without doing it. But the moment i jump the car it starts. So i think its the battery but dont want to buy one now until i can get the injectors firing.

[Dewald]

Regarding the fault codes i did clear them and they never shown up again even after cranking the engine a lot. The live data show up to 400psi when cranking and 200psi when just sitting. There is a black box ( not the bsm) next to the battery that has big fuses and replaceable relays.

[Dewald]

I just read a post that one needs atleast 200bar for ecu to send power to injectors. My live data shows 400psi wich equals 47bar. Also loads of air pockets in pipeline. Can this cause no start