[moz335d]

So, finished all deletes and everything, car drives great, with one exception.

I cant "punch it" which with gas prices is fine with me, but, on the way home I did punch it a bit at the red light, this normally led to limp mode due to P0087, except this time, it actually KILLED the engine.

I coasted for a bit pulled in and was able to get the engine started as normal in park.

Codes:
P02D3 (?)
P0087 (Low rail pressure)

Currently trying to get ISTA re-installed. I really wish that INPA would let me go to the engine page for the M57, I'm not sure if there is a specific package that it needs for the diesel engines or not.

Of course, I really don't want to start throwing money around, I would really like to do some logging / live readouts and see what is actually happening at the fuel sensors. And cross my fingers that the HPFP pump is OK.

Poking around I see that some logged with Testo, I think that would work if it can see the fuel pressure readouts right?

(All maintenance has been done, brand new filter and brand new glowplugs + module)

The only other thing is when I cleaned the manifold I forgot to take the gasket / grommet out for the (MAP?) sensor, I am going to order one from FCP Sensor + grommet, could that be causing an issue? It its reading like 15-20psi on OBD fusion at idle, ofc I dont know if thats accurate or not.

[335dlci]

I would recommend using a bmw diagnostic tool.

[moz335d]

Originally Posted by 335dlci

I would recommend using a bmw diagnostic tool.

Just playing the waiting game for ISTA to download.

[lnxguy]

You need the FXX series files for INPA in order to get access to the M57.

Read this.

https://www.e90post.com/forums/showthread.php?t=1206390

[moz335d]

Originally Posted by lnxguy

You need the FXX series files for INPA in order to get access to the M57.

Read this.

https://www.e90post.com/forums/showthread.php?t=1206390

Gotcha, that makes more sense. ISTA is fairly large which means I need a new SSD for my diagnostic laptop, but I can definitely give the FXX INPA a shot.

[maryjane]

Where in Ga are you? Im in WR and have all the software....

[lnxguy]

Originally Posted by moz335d

Gotcha, that makes more sense. ISTA is fairly large which means I need a new SSD for my diagnostic laptop, but I can definitely give the FXX INPA a shot.

All you need to do is copy the 2 files over and edit the config, super simple.

[moz335d]

Originally Posted by maryjane

Where in Ga are you? Im in WR and have all the software....

NE GA, around Lake Lanier. No worries, got ISTA and INPA installed and working.

Minor annoyance is that the engine pages in INPA are in Deutsch / German, and mein deutsch ist nicht gut.

I sincerely appreciate the offer, and I'll pm you if I still cant figure it out. Never been down to Macon anyways so it would be a nice cruise lol.

[moz335d]

Originally Posted by lnxguy

All you need to do is copy the 2 files over and edit the config, super simple.

Yes, I have always used the "YouTube" versions which are typically the Mikes Easy BMW tools or whatever is off bimmergeeks.

Now that I know where to find the "correct" versions of INPA and ISTA its going alot better.

Once I had the correct INPA downloaded, and followed the thread you mentioned, and it really was that simple.

I might have to phone a friend or pull up ol reliable google translate on some of the fields but its all there and it all works.

Thanks for the help.

[moz335d]

Alright, so quick update.

Glowplugs are completely fixed, what happened is when I removed the coolant pipe above the module when doing the maintenece, some coolant spilled INTO the connector, not seeing this later when I did the new plugs and module, thats why it was freaking out.

I cleaned it out with brake cleaner and put some contact grease and its perfect.

The only fault I'm getting is Low Rail pressure.

Now, here's whats strange, when I give it the full beans, it'll go first into limp mode after maybe a second or two, then after a few more, completely dies.

In order to restart the engine, I had to pull off, reset the ignition (Park, then off / key out, key on, ign on, start) and it ran.

I understand the limp mode but should it completely cut off the engine?

I used my little OBD app to get a chart of the rail pressure sensor, just to see what it does, its not by any means that helpful I'm sure but it did give me an idea that its not completely dead.

I'll update once I can get some data from INPA or even ISTA.

[moz335d]

So, ISTA and INPA actually being useable has allowed me to learn alot of their capabilities, in doing so, I went ahead and did the following:

ISTA:

Get a message whenever I perform a vehicle test / identification. (Fig 1) that the "vehicle is not identical to series"

Read and cleared faults since last I had ISTA set up.

Ran the bleeding procedure just for the heck of it, let pump run for full 3 mins and engine idle for 10 mins. (fig 2)

I reset some adaptations, just to see if that would help, however, it will not let me reset the Rail pressure regulator valve adaptation. (fig 3)

*At this point I pull up INPA and good ol bandicam and record the values as I do a short test drive to force the car to go into limp mode / kill the engine. On my test drive, I noticed the engine dies most when doing hard pulls from 0mph, the second time was when I held the brake and tried to launch it, interestingly enough, with WOT and holding the brake it didnt kill the engine nor go into limp mode, the second I launched it, limp mode and killed the engine. Third time, a more soft-launch, I let it get up to 25 and then gave it the beans, before I even had the throttle maybe 40% of the way, dead.*

Codes & conditions after the test drive 004600 and 004610, note that the 4600 code occured twice in the 3 times the engine stalled / died. (fig 5,6,7)

INPA:

I set bandicam to record and went on my drive, I went between two pages primarily, "SELEKTIVE MENGENKORREKTUR" OR "Quantity correction" and the "SOLL/IST WERTE 1" or "Target / Actual values"

I saw many instances where injector #4 was going crazy compared to the others, first fig is prior to test drive, second is after 3rd time killing the engine, not sure if this indicates a dying injector, but I'm not waiting to find out, ordered a replacement just in case. (Fig 8,9)

Figure 10 is the target values right at full WOT on the 3rd pull. this is the peak of the values shown.

Additionally, the situation is worsening, at this point I can get limp mode by just about 30% throttle, any more than about half throttle, engine dies almost immediately.

[maryjane]

Check to see if you're "MAKING" oil. If that injector is failing it could be leaking a large amount of fuel into the motor.....not only will you lose pressure you'll be washing that piston of oil and you'll get a failed bearing. Looks like you're on the right track though.

[moz335d]

Originally Posted by maryjane

Check to see if you're "MAKING" oil. If that injector is failing it could be leaking a large amount of fuel into the motor.....not only will you lose pressure you'll be washing that piston of oil and you'll get a failed bearing. Looks like you're on the right track though.

Holy main bearing batman! Confirmed not making oil, level has been, and still is at halfway mark.

Thank you for the heads up, I will be routinely checking the oil condition for the presence of diesel.

Great to hear, thank you again for the support and I'll update again once I have the new injector in and coded.

[moz335d]

Got a reman injector from IDparts ($250 + 50 core) which was the cheapest and most reliable seller I could find. (2 year warranty)

Considered FCP for the lifetime warranty + being brand new, but also considered that these injectors normally should last well over 100k.

One issue I had and learned is I am going to order fresh retaining nuts for the injectors, it took me an extra half hour to deal with that stripping at just under 1 nM away from final torque.

Replaced it with a 10mm hex M6 grade 10.9 I had extra.

All codes gone and holy s**t is it fast, so fast I nearly burned my brakes up trying to stop.

Now that I have INPA and ISTA set up and working as it should, the bleeding and recoding took mere minutes.

Very relieved the HPFP is still okay for now.

Thank you maryjane, lnxguy & 335dlci for your support and advice!!

[lnxguy]

Good news! Glad you got it figured out.

[maryjane]

Glad you got it all fixed....I did the same thing with those injector nuts....they're just too small. Welcome to the fun....what tune are you running and any other mods planned?