[Poosik]

I had the JBD in for 8mo or so @ 100% with no prob's.
One day, after oil change (coincidence maybe) car starter to throw SES & limp mode
its still a CPO so i brought it in, they had my car for 8 days. First the HPFP was replaced, tech drove the car but code/limp mode came back. They opened a PUMA case.. then ended up taking the rear seats out and open tank to look for fuel contamination. At this point i was like F**CK..cuse i use diesel fuel additives.. but they didn't care/or seem to notice. Ended up replacing the the LOW pressure fuel pump and all is ok for now...
Parts alone cost over 2k$....
CPO ends in 8months....

[Hoooper]

oh snap I think youre the first person to have an HPFP issue no? At only 33k miles thats pretty early to be losing a HPFP, but since they had to replace the lift pump and filter maybe there was nothing actually wrong with the HPFP but instead there was a restriction in there? Clogged filter?

[Poosik]

I agree, they weren't able to isolate prob so instead just kept throwing new parts at it until something finally worked.

If this happens to anyone after warranty expires keep the fuel filter/ secondary pump in mind to avoid a painful $$ bill.

[Hoooper]

Yeah this is the value of more powerful logging software like bavtech. Knowing the process they went through, my first thought would be to disconnect the fuel line after the filter and force the lift pump to run to verify flow. Whether that would have helped diagnosis I dont know, but it sounds like it might have. I would think that the lift pump doesnt run while the engine is running but only works as a primer, can anyone verify when/why the lift pump runs?

[Quasimodem]

Yeah, this is the first time I have heard about the hpfp. I guess we can't tease 335i owners any more.

Edit: oops, reread op, good to see it was the lpfp, should be cheaper than the hpfp.

[335dlci]

Could also be a misdiagnosis since it wasn't fixed with the recommendation by BMW

[Puerto Rican 335d]

holy shit

[Mark M]

Originally Posted by Puerto Rican 335d

holy shit

Mods please remove this post from the above user. It has not added any value and contains unnecessary profanity.

[335dwanted]

So I was curious if the SES codes thrown here were typical of those experienced with the JBD and a quick search brought up a post by Poosik in late August when he first had the codes: http://www.e90post.com/forums/showthread.php?t=1026376

In this current thread he neglected to mention that he removed the JBD to take his 2009 335d to BMW for an oil change at 32K (low mileage 2009!). Now if I am not mistaken the 2009 maintenance schedule calls for fuel filter replacement every third oil change and 32K sounds like it might just be the third for this particular car. If they did indeed change the fuel filter I have a strong suspicion that the new filter was likely the problem all along. Poosik - do you still have the service record for the oil change that precipitated the problems?

What is also interesting is that in the other thread taibanl responded with a description of the code Poosik was experiencing (I included that below) and the first potential source of the problem listed was low pressure fuel pump and/or fuel filter. I am curious what caused BMW to ignore the low cost potential issue and jump right to the big dollar HPFP.

4560 - P0087
Information saved in
DDE
Fault code
4560 - P0087
Fault text
DDE: Rail-pressure plausibility delivery-controlled: Positive control deviation/rail pressure too low
Fault description
Monitoring for positive control deviation (rail pressure too low) while rail pressure is being regulated by fuel-quantity control valve.
The error is recognized when the positive control deviation is greater than the limit defined by the operating point.
The limit is calculated based on engine rpm and lies between 170 bar and 200 bar.
Condition for fault identification
Test condition:
The test routine runs only when the following conditions are satisfied:
- Rail-pressure control from fuel-quantity control valve is active.
- Monitoring is enabled.
Voltage condition:
The test routine runs only when the following conditions are satisfied:
- Rail-pressure control from fuel-quantity control valve is active.
- Monitoring is enabled.
Condition for fault memory entry
Debounce (900 ms)
Action in service
Check the following potential problem sources:
- Fuel presupply pressure (low-pressure delivery circuit) is too low (filter obstructed, leak in low-pressure circuit).
- Rail-pressure sensor indicates incorrect value.
- Leakage in high-pressure circuit.
- Injector is sticking open.
- Worn high-pressure pump.
- Worn injector.
- Internal leakage in common rail system.
- External leakage in common rail system.
- Air in common rail system.
Investigate potential problem sources, conduct rail-pressure control system test.
Fault effect and breakdown warning
Output governed.
Proceed to the nearest BMW Service facility.
Driver information
Warning light:
MIL_SVS
Service instruction
none

[F32Fleet]

everyone. it seems that the low pressure fuel pump was the issue. Not the HPFP.

[skychismo]

Originally Posted by Mark M

Mods please remove this post from the above user. It has not added any value and contains unnecessary profanity.

Mods please remove this post by the above user. He's obviously a complete moron.

[Poosik]

Records show diesel fuel filter has been replaced at least
once at 23k miles (10k mi ago)
so this brings suspicion back on the low press fuel pump or diesel additive (Stabil Diesel)

[BB_cuda]

Originally Posted by skychismo

Mods please remove this post by the above user. He's obviously a complete moron.

Sky, I'm trying to keep score. Which are you applying your remark to, mark or Rican?

[GottaBeKD]

Originally Posted by BB_cuda

Sky, I'm trying to keep score. Which are you applying your remark to, mark or Rican?

Will there be a score thread? What's your tally so far

[diaz92376]

Originally Posted by skychismo

Mods please remove this post by the above user. He's obviously a complete moron.

+1

[skychismo]

Originally Posted by BB_cuda

Sky, I'm trying to keep score. Which are you applying your remark to, mark or Rican?

I was replying to Mark. People who are offended by words, especially in written form, are usually weak willed and lack confidence.

[Mark M]

Originally Posted by skychismo

I was replying to Mark. People who are offended by words, especially in written form, are usually weak willed and lack confidence.

Sky my point was that PR seems to regularly chime in on any and all threads without ever adding real value. Additionally some of his posts are of poor taste and been offensive. Example being his personal attack war with Stan of Ecotune.

His antics are getting old on here especially to those of us who cone to this forum for constructive learning and sharing of knowledge.

[335dwanted]

I agree, seems the LPFP crapped right after the oil change. I doubt it is the additive, but I guess anything is possible.

Hopefully all is well and you can get the JBD back on!!

Originally Posted by Poosik

Records show diesel fuel filter has been replaced at least
once at 23k miles (10k mi ago)
so this brings suspicion back on the low press fuel pump or diesel additive (Stabil Diesel)

Attachment 1089158



Attachment 1089159

[Yozh]

To the OP:

-Have you ever starved your HPFP/LPFP of fuel. Meaning, have you ever run out of diesel and your engine shut down.

-Do you frequently run on close to empty/fuel reserve?

I see you are in Tampa which means your ambient is generally fairly high. Fuel acts as coolant for the LPFP. If you frequently run on reserve, your fuel temperature is usually higher than if you have a full tank. Higher operating temperature will lead to premature wear/failure of your LPFP.

[Poosik]

I moved to Pennsylvania 7mo ago (ambient temps 75 ish) and actually never run below 1/4 tank, but maybe the 1st owner did.
SES & Limp mode occurred on full tank of gas every time engine rpm exceeded 3k.

The remarkable thing I never mentioned, was that very morning this happened I was on my way to NJ for an EcoTune remap.