Car starting then dying

TedIsBoosted · 10-26-2020, 07:57 PM

Hey everyone. Having a bit of a nightmare.

I installed my stage 2 LPFP around 3 days ago. After install I took it out and got some great logs. Everything seemed perfect. Had to recode the EKPM3 to the Brazilian X1 or X3 I believe (Ethanol) pump allows no fuel pump plausibility, anyways.

I left the car for a full day and the next day, I got in started fine, idled fine.

The car felt like it was misfiring so I quickly pulled over plugged the MHD adapter in, didn’t see anything popup and continued. After about 3 seconds of driving it just cut. Absolutely no power etc. When I tried to restart it would switch on then die. At the time I got the error codes :
29DC (Cylinder injection cutout)
29F3 (Low pressure sensor, electric)
2BA2 (Terminal 15 deactivation, activation) this one I have had for a while. And happened after I unplugged vacuum from Actuator on the exhaust.

Anyways I managed to get it home via a tow truck. And then Everytime I start it it dies. Even if I apply throttle it builds pressure in the HPFP to even 2,000 PSI but still cuts out.
The current codes I get are:

Active
2BA2 (Terminal 15)

Shadow

2FCA (Fuel high pressure being Freigabe Der Einspritzung)
2FDA (Crankshaft sensor signal missing)

I did notice the other day my LPFP sensor was acting up and was stuck on 140 PSI.

I will attach some graphs and videos etc.

I ordered a new HPFP sensor, LPFP sensor with rail (new revision) and a Crankshaft sensor.

Would any of these things cause these issues ? Or has anyone else had a similar issue ?

Click this text for a video of what happens
(In the video I apply throttle and with the log attached the HPFP hits 2,000 psi)

Click here for first log

Click here for second log

Many thanks for any help!

TedIsBoosted · 10-27-2020, 11:59 AM

Changed fuse F76. Car started and then died again with crankshaft code around about the same time it died last time.

Jeff@TopGearSolutions · 10-27-2020, 01:51 PM

Likely crankshaft sensor. Not a bad idea to get everything fresh on the fuel side. Without a good crank signal, the car won't run.

TedIsBoosted · 10-28-2020, 10:52 AM

Quote:

Originally Posted by Jeff@TopGearSolutions

Likely crankshaft sensor. Not a bad idea to get everything fresh on the fuel side. Without a good crank signal, the car won't run.

Replaced sensor. Car just cranks with no start.

Getting DME : Terminal 15 deactivation, activation
CAS : Engine start, starter operation.

Any ideas ?

BSM n54iS · 10-28-2020, 06:58 PM

Do you have a proper log where you stay wot through 6.5k rpm in 3rd?

TedIsBoosted · 10-28-2020, 09:47 PM

Quote:

Originally Posted by BdSM n54iS

Do you have a proper log where you stay wot through 6.5k rpm in 3rd?

I mean considering the car won’t even idle, unfortunately not.

The HPFP has failed. If idle and apply throttle HIGH PRESSURE RAIL plummets

Saif2018 · 10-31-2020, 07:40 AM

Quote:

Originally Posted by Tedbuildiy

Replaced sensor. Car just cranks with no start.

Getting DME : Terminal 15 deactivation, activation
CAS : Engine start, starter operation.

Any ideas ?

Have a read through this thread...

https://www.e90post.com/forums/showthread.php?t=1307503

Might be helpful in ruling out the starter motor,

Lesssgedittt · 11-01-2020, 01:57 AM

i have the same issue

feuer · 11-01-2020, 11:01 AM

Quote:

Originally Posted by BdSM n54iS

Do you have a proper log where you stay wot through 6.5k rpm in 3rd?

BSM n54iS · 11-01-2020, 11:54 AM

GEE was this the first log the OP EVER TOOK?? Like, I dunno, maybe he has a log taken BEFORE the issue so we could see that his hpfp was dying and on it's way out?

TedIsBoosted · 03-04-2021, 03:19 PM

Just here now, forgot to reply. The LPFP Sensor was mimicking HPFP failure, so I replaced the LPFP sensor and it worked.

Saif2018 · 03-04-2021, 04:14 PM

Quote:

Originally Posted by TedIsBoosted

Just here now, forgot to reply. The LPFP Sensor was mimicking HPFP failure, so I replaced the LPFP sensor and it worked.

Just the LPFP that failed?

HPFP was ok?

10-26-2020, 07:57 PM	#1
TedIsBoosted New Member 1 Rep 15 Posts Drives: 335i Join Date: Jan 2020 Location: UK iTrader: (0)	Car starting then dying Hey everyone. Having a bit of a nightmare. I installed my stage 2 LPFP around 3 days ago. After install I took it out and got some great logs. Everything seemed perfect. Had to recode the EKPM3 to the Brazilian X1 or X3 I believe (Ethanol) pump allows no fuel pump plausibility, anyways. I left the car for a full day and the next day, I got in started fine, idled fine. The car felt like it was misfiring so I quickly pulled over plugged the MHD adapter in, didn’t see anything popup and continued. After about 3 seconds of driving it just cut. Absolutely no power etc. When I tried to restart it would switch on then die. At the time I got the error codes : 29DC (Cylinder injection cutout) 29F3 (Low pressure sensor, electric) 2BA2 (Terminal 15 deactivation, activation) this one I have had for a while. And happened after I unplugged vacuum from Actuator on the exhaust. Anyways I managed to get it home via a tow truck. And then Everytime I start it it dies. Even if I apply throttle it builds pressure in the HPFP to even 2,000 PSI but still cuts out. The current codes I get are: Active 2BA2 (Terminal 15) Shadow 2FCA (Fuel high pressure being Freigabe Der Einspritzung) 2FDA (Crankshaft sensor signal missing) I did notice the other day my LPFP sensor was acting up and was stuck on 140 PSI. I will attach some graphs and videos etc. I ordered a new HPFP sensor, LPFP sensor with rail (new revision) and a Crankshaft sensor. Would any of these things cause these issues ? Or has anyone else had a similar issue ? Click this text for a video of what happens (In the video I apply throttle and with the log attached the HPFP hits 2,000 psi) Click here for first log Click here for second log Many thanks for any help!
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10-27-2020, 11:59 AM	#2
TedIsBoosted New Member 1 Rep 15 Posts Drives: 335i Join Date: Jan 2020 Location: UK iTrader: (0)	Changed fuse F76. Car started and then died again with crankshaft code around about the same time it died last time.
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10-27-2020, 01:51 PM	#3
Jeff@TopGearSolutions 3461 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Likely crankshaft sensor. Not a bad idea to get everything fresh on the fuel side. Without a good crank signal, the car won't run.
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10-28-2020, 06:58 PM	#5
BSM n54iS Brigadier General 2682 Rep 4,203 Posts Drives: '11 335is \| '16 Macan Turbo Join Date: Aug 2015 Location: Everywhere and Nowhere iTrader: (7)	Do you have a proper log where you stay wot through 6.5k rpm in 3rd? __________________ '11 335is BSM MT "BMW Performance Editon" \| '16 Porsche Macan Turbo GruppeM CF Intake \| AR Resonated DP \| ER CP \| Turbosmart RacePort BOV \| Cobb FMIC \| RB Inlets \| RB External Mishi/Turner OCC \| Michelin PS4 \| BMW Performance Springs/Bilstein B8 + Dinan & M3 bits \| BMW Brembo BBK \| BMW Performance CF Spoiler \| BMW Performance CF Lip \| BMW Performance Alcantara \| PS Designs GTS Armrest \| AG H6-40 \| Rear Seat Delete
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11-01-2020, 01:57 AM	#8
Lesssgedittt Registered 0 Rep 2 Posts Drives: 2011 335i Join Date: Nov 2020 Location: bakersfield ca iTrader: (0)	me too i have the same issue
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11-01-2020, 11:54 AM	#10
BSM n54iS Brigadier General 2682 Rep 4,203 Posts Drives: '11 335is \| '16 Macan Turbo Join Date: Aug 2015 Location: Everywhere and Nowhere iTrader: (7)	GEE was this the first log the OP EVER TOOK?? Like, I dunno, maybe he has a log taken BEFORE the issue so we could see that his hpfp was dying and on it's way out? __________________ '11 335is BSM MT "BMW Performance Editon" \| '16 Porsche Macan Turbo GruppeM CF Intake \| AR Resonated DP \| ER CP \| Turbosmart RacePort BOV \| Cobb FMIC \| RB Inlets \| RB External Mishi/Turner OCC \| Michelin PS4 \| BMW Performance Springs/Bilstein B8 + Dinan & M3 bits \| BMW Brembo BBK \| BMW Performance CF Spoiler \| BMW Performance CF Lip \| BMW Performance Alcantara \| PS Designs GTS Armrest \| AG H6-40 \| Rear Seat Delete
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03-04-2021, 03:19 PM	#11
TedIsBoosted New Member 1 Rep 15 Posts Drives: 335i Join Date: Jan 2020 Location: UK iTrader: (0)	Just here now, forgot to reply. The LPFP Sensor was mimicking HPFP failure, so I replaced the LPFP sensor and it worked.
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