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[Engine] 2016 berlingo 1.6 hdi Low fuel pressure
#1
I’m after a bit of advice if possible I’ve got a 2016 berlingo 1.6 hdi enterprise van only covered 30k very well looked after. I was doing the normal run to work and all of a sudden it lost power the engine warning light came on and went into limp mode. I managed to get into work turned the van off and the coolant fans were running flat out it was pretty cold this morning so I don’t understand that. I’ve read the code in the ecu and it says low fuel pressure. I cleared the code and went out again in the van and the same fault happened. Engine goes into limp mode same code appears. Does the 1.6 hdi engine suffer with fuel pressure faults at this sort of mileage. It’s serviced with genuine parts every 10k with the best quality oil and always use shell diesel not supermarket rubbish. Could it be the fuel pressure sensor playing up or the high pressure pump starting to fail i didn’t think I’d get any problems at 30k and it’s just out of warranty ?
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#2
Daft question do you have the air con on because the cooling fans will run for that.

If not i suspect its trying to do a dpf regen.

As for the low fuel pressure get the fuel filter changed before you do anything else even if its been done recently.
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#3
Yeah the aircon was on but the fans have never sounded like this before even in 35 degree heat. The fuel filter was only changed 2k ago surely it can’t need changing again.
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#4
Could be a faulty filter?
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#5
I guess it’s worth trying isn’t it
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#6
(19-11-2019, 08:56 PM)stevegti6 Wrote:  I guess it’s worth trying isn’t it

Even if the diagnostics showed low fuel pressure its still the first thing any decent garage would do is change the fuel filter and check the lines for any air leaks.
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#7
Do you have hand priming fuel pump under the bonnet ,engine bay ?


Best regards,
brajomobil
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#8
Yes it does
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#9
Polar is spot on with his fuel filter recommendation, however assuming it’s had one & it was a decent quality part, I would suspect it will be the fuel rail pressure switch.
We have changed a few over the years, good luck though, it’s a real awkward little thing to replace.
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#10
Hand pump means no electric pump in tank.
That means , the fuel pressure is calculated from rail pressure sensor.
I'm here with Lighty. That high pressure solenoid is known to fail.
Symptoms are like you describe. The only way to properly test it is with oscilloscope.
Lexia is not helpful here. Part is not cheap.

Before doing anything I would change fuel filter with new one. 



Best regards,
brajomobil
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