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E9xjake E9xjake is offline
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Default Hpfp failure? - 04-13-2017, 10:08 AM

I got a log of a 3rd gear and it went into limp mode at 5500 rpms. Codes 29f2 and 29e2. Is it my fuel pump? Injectors? Car is 09 335xi
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File Type: csv log2.csv (9.3 KB, 47 views)
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Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 04-13-2017, 10:41 PM

HPFP crashed, doesn't look good.



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ms335i ms335i is offline
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Default 04-14-2017, 05:30 AM

If you need one pm me.
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E9xjake E9xjake is offline
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Default 04-14-2017, 10:03 AM

Quote:
Originally Posted by Steve @ BMS/Fuel-It!
HPFP crashed, doesn't look good.
Is it definitely the hpfp then?
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keyap keyap is offline
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Default 04-14-2017, 10:16 AM

No guarantees but........

What's it like on cold start? Long cranks?

How does the car idle? Grab a log - HPFP ideally wants to stop >4


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E9xjake E9xjake is offline
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Default 04-14-2017, 10:28 AM

Quote:
Originally Posted by keyap
No guarantees but........

What's it like on cold start? Long cranks?

How does the car idle? Grab a log - HPFP ideally wants to stop >4
It idles like crap. It feels like it's misfiring a lot. I have no misfire codes tho. Also I feel there's an unusual amount of smoke coming from my exhaust.
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ms335i ms335i is offline
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Default 04-14-2017, 10:56 AM

Jake do a idle log. and see what hpfp is like.
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ms335i ms335i is offline
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Default 04-14-2017, 10:57 AM

I spent two days diagnosing my piece of ****, thinking it's a fueling issue and it turned out to be a vaccum leak that was causing the hpfp to drop and shutoff only cylinder 6.
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E9xjake E9xjake is offline
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Default 04-14-2017, 01:24 PM

Quote:
Originally Posted by ms335i
Jake do a idle log. and see what hpfp is like.
Alright here we go. Its weird because I just realized it idle fine with no misfiring feeling when the air conditioning is on. Also, I did a few hard pulls today and no limp mode.
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File Type: csv idle log.csv (36.2 KB, 35 views)
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keyap keyap is offline
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Default 04-15-2017, 02:03 AM

HPFP looks fine on that one.

Can you grab a log when there's a problem?


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E9xjake E9xjake is offline
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Default 04-15-2017, 09:41 AM

Quote:
Originally Posted by keyap
HPFP looks fine on that one.

Can you grab a log when there's a problem?
I can try I just don't understand. It feels like it's running better all of the sudden but it still felt like it was misfiring a little during that one
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