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Hi All,
As per the thread title, I have a problem with the fuelling on my 320d (M47 engine,)
The code reads as a low reading on the fuel pressure regulator, I have already replaced the lift pump in the tank,
I've been offered a complete fuel rail off an N47 320d, does anyone know, would the sensors be compatible / fit ??
(I'm also wondering if it might be "high pressure pump" related as she's done 176000 miles so might be worn out ??)
Any advice gratefully received,
Nigel
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BMW E39 525i Sport
BMW E46 320d Sport Touring (now sold on.)
BMW E30 325 Touring (now sold on.)
BMW E30 320 Cabriolet (Project car - currently for sale.)
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Hi,
Thanks for the response,
I'll have to re-scan tomorrow morning sorry, can't remember,
The problem manifests as an occasional"misfire / stumble" when on tickover accompanied by a cracking noise, even to the point where it occasionally will stall but starts up again immediately,
As I said, I'll re-scan tomorrow and post it up,
Nigel
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BMW E39 525i Sport
BMW E46 320d Sport Touring (now sold on.)
BMW E30 325 Touring (now sold on.)
BMW E30 320 Cabriolet (Project car - currently for sale.)
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Hi xbl,
Code is P0192,
Thanks,
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BMW E39 525i Sport
BMW E46 320d Sport Touring (now sold on.)
BMW E30 325 Touring (now sold on.)
BMW E30 320 Cabriolet (Project car - currently for sale.)
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Chances are it's the fuel rail pressure sensor then. Only way to cross reference would be to double check the part numbers against each other, that said I wouldn't bother with a used sensor.
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Last Edit: Aug 2, 2021 10:20:20 GMT by xbl
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Ok,
Many thanks for the help,
Greatly appreciated,
Nigel
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BMW E39 525i Sport
BMW E46 320d Sport Touring (now sold on.)
BMW E30 325 Touring (now sold on.)
BMW E30 320 Cabriolet (Project car - currently for sale.)
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Further to my last,there are 2 sensors on the rail, one at either end,
I assume the regulator is the one at the "forward (radiator) end", what is the rear ward sensor ??
Nigel
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BMW E39 525i Sport
BMW E46 320d Sport Touring (now sold on.)
BMW E30 325 Touring (now sold on.)
BMW E30 320 Cabriolet (Project car - currently for sale.)
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The one at the pump end is the pressure sensor.
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Sorry,
Confused now,
Which should I change, the larger one at the front of the engine or the smaller one at the back ??
Cheers,
Nigel
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BMW E39 525i Sport
BMW E46 320d Sport Touring (now sold on.)
BMW E30 325 Touring (now sold on.)
BMW E30 320 Cabriolet (Project car - currently for sale.)
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The front one nearest the fuel pump is the pressure sensor. Number 3 in this diagram  |
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Last Edit: Aug 2, 2021 13:57:55 GMT by xbl
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Thank you and thanks for the diagram,
That (no3 on diagram) is at the rear of the engine bay on mine,
Nigel
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BMW E39 525i Sport
BMW E46 320d Sport Touring (now sold on.)
BMW E30 325 Touring (now sold on.)
BMW E30 320 Cabriolet (Project car - currently for sale.)
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That's odd, the arrow bottom right always points to the front of the car in their diagrams.
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Well I've definitely never disturbed them until the other day and then I only took the front (large) sensor out,
Curious, 🤔🤔
Nigel
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BMW E39 525i Sport
BMW E46 320d Sport Touring (now sold on.)
BMW E30 325 Touring (now sold on.)
BMW E30 320 Cabriolet (Project car - currently for sale.)
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Hi xbl,
Just to close on this, today I pulled the inlet manifold off, (got to do that anyway to get the rearmost sensor out,)
As I stated, the sensor / regulator are the reverse of the diagram but could not be reversed in error as one has a two pin plug and the other a three pin plug,
Strange that but I'll get a new sensor to try anyway,
Again, many thanks for the help,
Nigel
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BMW E39 525i Sport
BMW E46 320d Sport Touring (now sold on.)
BMW E30 325 Touring (now sold on.)
BMW E30 320 Cabriolet (Project car - currently for sale.)
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