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X5 E53 'fuel inject system' error plus fixes undertaken
Good Afternoon All,
I am the proud owner of a solid E53 X5 3.0D DS1.
I have recently hit the 'fuel inject system' error when hard acceleration then the car goes into limp mode, now it randomly struggles to run smooth at idle. You could put your coffee cup on the engine and it wouldn't move.
Error Codes Recorded
3505 glow plug module control unit
1613 smooth running controller correction quantity too high
1190 rail pressure control valve
FIXES APPLIED
1, Replaced the fuel pump and fuel filter
2, Replaced the fuel rail sensor
Everything seemed ok errors cleared and power restored then it came back.
3, Leak off test performed and all came back equal.
The engine takes a little longer to start but does pretty instantly.
When it is cold the idle imbalance is more likely but the issues are random.
I have seen the 'transmission fail safe' flick up once but no error codes.
I have attached a copy of the data from INPA.
I am hoping someone maybe able to point me in the right direction.
The car had her time chain replaced, along with all vac lines and new turbo and has been solid for 8 months.
The car does have a remap and that has been on for over 3 years.
Thank you for your assistance and suggestions.
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