Annoying bmw fault 2738 Fill plausibility bank 2 - Page 2 - BMW M5 Forum and M6 Forums
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post #11 of 33 Old 14th August 2014, 03:48 PM Thread Starter
hchome
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Still no time and clip to replace the new one XDDD!!!!

BTW, I bought the fuel pump relay at well~~~~

Before replace the relay and new ordered 2nd MAF, I will let u know the result of the fuse pulling work or not definitely. ^^

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post #12 of 33 Old 15th August 2014, 04:36 PM Thread Starter
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Hey dude~~~~

That's {{{{{ AMAZING }}}}}

After work, I replaced the new 20A fuses to trunk fuse box (2005 M5 fuel pump fuses position are No.50 and No.71 in trunk)
and replace the new fuel pump relay in glove box. I ran the beast into city first and it had no any rough idle, then I ran
around 50km to home at highway. At the first traffic light stop, there had no more rough and stalling.

Athough not sure related to fuses or relay, however it really worth to try and it becomes another CAR!!!!!!!

Millions thanks for your help TROP JEUP and JCOLLEY.

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post #13 of 33 Old 23rd August 2014, 12:08 AM
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Nice!!

Hey what relay in glowe box is for fuel pump? do you have oem number for that relay ?
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post #14 of 33 Old 23rd August 2014, 04:17 AM Thread Starter
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Quote:
Originally Posted by lefaslayer View Post
Nice!!

Hey what relay in glowe box is for fuel pump? do you have oem number for that relay ?

Part and location for the fuel relay here:
Relay, fuel pump K96 BMW E60 sedan 48807

No. 1 position (green color)

By the way, it happened the stall and surge idle again after replaced a week.

I will try to looking the part set of seondary MAF and any leakage of Emission control-air pump~~

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post #15 of 33 Old 11th June 2015, 07:51 PM
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I still have this error on...BMW Error code: 2738 Filling, plausibility, bank 2- Air mass value not plausible....
i changed MAF1 to 2 and other way and still getting Bank 2 error code so its not broken MAF.
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post #16 of 33 Old 11th June 2015, 09:36 PM
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Quote:
Originally Posted by lefaslayer View Post
I still have this error on...BMW Error code: 2738 Filling, plausibility, bank 2- Air mass value not plausible....
i changed MAF1 to 2 and other way and still getting Bank 2 error code so its not broken MAF.

Have you had your intake plenum off? It's possible an air leak is allowing air in that the MAF doesn't know about. Hat causes a lean mix which the pre-cat O2 sensor corrects then reports that it thinks the MAF is out to lunch.
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post #17 of 33 Old 11th June 2015, 09:48 PM
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last "repair" at workshop they removed intake.
okey need to check intakes, any DIY "how to remove intake easily"
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post #18 of 33 Old 11th June 2015, 09:55 PM
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Originally Posted by lefaslayer View Post
last "repair" at workshop they removed intake.
okey need to check intakes, any DIY "how to remove intake easily"

There is a DIY in the stickies. It isn't uncommon for one of the intake plenum rubber couplings to get rolled and squished. It will be very apparent when you remove it if that's the case. Lube the inner of the coupling with some oil on reinstallation and make life easier.
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post #19 of 33 Old 12th June 2015, 06:30 PM
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found something, Air filter box was 1cm away from pipe where outside air comes... the warm air can get in that way, but this is before MAF so not sure can that set error ?
i looked bank2 intakes whit mirrors and flashlight and all look good
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post #20 of 33 Old 12th June 2015, 06:38 PM
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In my line of work, when a mechanic makes a mistake on a job, every other part of that job is questioned to fully bound the scope of the problem. That gap you found is much easier to install correctly than the plenums are. If that isn't done right...

The coupling fold usually happens inside the V of the engine, not the outside. I don't know how you can see that with mirrors.
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