[TedIsBoosted]

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]

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

[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.

[TedIsBoosted]

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]

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

[TedIsBoosted]

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]

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]

i have the same issue

[feuer]

Originally Posted by BdSM n54iS

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

[BSM n54iS]

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]

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

[Saif2018]

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?