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Permanent fault. Diesel issues.. help!
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jenskuhn   
Thu Apr 18 2019, 11:04am
Joined: Aug 21 2016
Member No: #2756
Location: Oslo
 Got suddenly stuck in economy mode goong off the highway after driving 100kph for a few hours without any problems. After running a Lexia diag I got fault codes:
P0002 Fuel flow regulation. Current too high.
P0092 Fuel pressure regulation electrovalve. Short circuit to +
P1351 Pre-post heating relay circuit. Relay controlled. Plugs not controlled.

Before going on the trip I had noticed that the coolant level was low. I was able to fill 2,5 litre before going close to the «full»-mark. I dont know if the diesel pressure issues is related to this?

Any ideas where to start? Can I get it out of limp mode at least?
MGmike   
Thu Apr 18 2019, 11:57am
Joined: May 21 2017
Member No: #3151
Location: South Queensferry
 Ignore the P1351 for now that's likely to be one or more glow plugs faulty or the glow plug relay. But these won't cause the economy mode.

The other two sound like a fuel supply issue and I would start by changing the fuel filter as the easy first option. After that you'll need to investigate the fuel pump and the supply from there to the injectors.
jenskuhn   
Fri Apr 19 2019, 02:32pm
Joined: Aug 21 2016
Member No: #2756
Location: Oslo
 P0092 Fuel pressure regulation electrovalve. Short circuit to +
Where can I locate this one? Can someone show me a photo please
 

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