[txfour]

Hello all. New here.

Picked up a 2014 328d yesterday with 107,000 on the clock.

When I test drove it, the check engine light was on and throwing codes P2004 and P2201.

Dealer changed out the intake and NoX sensors and guaranteed that would fix it.

Test drove it again yesterday and no codes, no light. Paid the man and drove off.

45 miles in I get check engine light. I run the codes this morning and now have:
U0106 - Lost Communication with Glow Plug Module
P2457 - EGR Cooler System Performance
P2080 - Reductant Pump Control Circuit A High
P20FD - Reductant Pump Control Circuit B High

I called the dealer this AM and he says all of the p codes are coming from a sensor near the fuel tank. He thinks the sensor is bad???

I find it very odd that all of these systems could fail within 45 minutes of leaving...and all at the same time.

I wonder if the car isn't deleted and when they flashed it after the intake change it's all screwed up.

Car had a ton more power before the intake swap.

Any ideas? Can someone post pics of under hood on what to look for to see if it is deleted?

This is going to be an autocross toy so I plan to delete anyhow. Who is the best tuner/delete package for these rigs?

[Enabled]

Any chance you can read BMW manufacturer codes on the whole car? P codes are generally very vague.

Where in TX are you?

[txfour]

Originally Posted by Enabled

Any chance you can read BMW manufacturer codes on the whole car? P codes are generally very vague.

Where in TX are you?

I am not sure how to read BMW codes??? I used the scan tool at Oreilly's Auto Parts.

I am near Fort Worth.

[Enabled]

You will need some sort of scanner that reads those. Example, if it's the diesel exhaust fluid system, you'd get really nice descriptive codes out of the SCR module.

O'Reillys is not for this car.


Look into Carly for BMW if you wish to do stuff on phone, or INPA/ISTA etc.

A brief guess from looking at those codes indicates a problem with the DEF system and your EGR valve.

[txfour]

Okay, the Carly came in from Amazon and here are the faults it shows.

Motor Control
- 28CE00

Heating/AC
- E71431
- E71432

Body Control
- 804190
- 804191
- 804483

Other
- 8051AA
- 8051A2

[txfour]

Finally figured out how to include the actual report.

[Enabled]

0x28CE00 LIN Bus, communication: no messages from glow control unit GSG received

Is the glow plug module plugged in? This is a small module mounted to motor.



DEF/SCR system:
0x8051AA Supply pump, short to plus (DFC_UrSolnPmpSCB, Pin29)
0x8051A2 Back flow pump, short to plus (DFC_UrBackFlowPmpSCB, Pin50)


Any short to plus is reaaaaaly dangerous. Check wiring and/or components.

Both those wire pins come from the delivery pump part number 16197351665 #8 here
https://www.realoem.com/bmw/enUS/sho...diagId=16_0913

[txfour]

Originally Posted by Enabled

0x28CE00 LIN Bus, communication: no messages from glow control unit GSG received

Is the glow plug module plugged in? This is a small module mounted to motor.



DEF/SCR system:
0x8051AA Supply pump, short to plus (DFC_UrSolnPmpSCB, Pin29)
0x8051A2 Back flow pump, short to plus (DFC_UrBackFlowPmpSCB, Pin50)


Any short to plus is reaaaaaly dangerous. Check wiring and/or components.

Both those wire pins come from the delivery pump part number 16197351665 #8 here
https://www.realoem.com/bmw/enUS/sho...diagId=16_0913

Thanks. Can I access that from under the car easily?

[Enabled]

Yes, it's very accessible. Two wires shorting to plus means that the wiring may be frayed (possible with running over something), or an actual fault inside that pump.
A multimeter would help.

The pin numbers above are for the SCR module, which is in the trunk somewhere. I know where it is on wagon, but not sure about sedan.