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7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

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Old 11-16-2012, 11:47 PM
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PAPER PAPER is offline
Location: on the moon
Join Date: Jul 2009
Posts: 3,766
Mein Auto: Ford Pinto
Originally Posted by tuf-fkr View Post
so i am going to bring this thread back to life as i am getting the same symptoms after an engine rebuild. (same code(s) 2731,2748,2760)

I'm not sure if Drastic solved his problem ,
maybe some details on any work you done before the errors
came up , would help you get some answers ...

Last edited by PAPER; 11-16-2012 at 11:48 PM.
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Old 04-10-2013, 10:34 AM
Sarnut Sarnut is offline
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Location: Saint Simons Island, Ga
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Mein Auto: Everythning
One to spice this tread up

OK so here is my deal. i have a 2007 750li i did a set of valve cover gaskets on about a month ago. cust brought it back complaining of the low oil pressure light and check engine light one. car runs like crap by the way. which is odd because we put almost 10 miles on the car before we let it go. so i have looked at everything i can think of. but i keep getting a code for a communication problem with the intake cam sensor for the drivers side. i cant even get the car to fire up now. we have ohmed out all of the wires, tried swapping all of the sensors around, i have even pulled all four vanos soliniods, cleaned them and reinstalled. i have re-pulled the valve cover and inspected for anything and nothing. i have smoke tested the car about five times now looking for and air leak and hey nothing. so now i have done the dreaded and put a DME in an for the big slap in the face... still the same problem... i am at a loose and not sure where to look from here. any idea?
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Old 04-10-2013, 12:14 PM
Firecatdriverf7 Firecatdriverf7 is offline
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Location: Mountain
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Mein Auto: 745li ,Rx8 & 7
Bad IVM?
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Old 06-13-2015, 02:58 AM
ish545i ish545i is offline
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Location: U.S
Join Date: May 2015
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Mein Auto: 545i
Originally Posted by DrAsTiC View Post
Hello everyone I am just looking to pick someones brain to see if anyone has had this problem. I just changed my valve cover and top timing cover gaskets on my 2004 745i. I started the car up and it ran very smooth so I took it for a test drive around the corner and it started to run very rough and the engine fault light came on. I put everything back exactly how it came off. I also ordered the peake code reader just to get the error codes but I am wondering if I have to do something else. I am avoiding having to bring the car to the dealership because I know I will get all kinds of BS from them.
Did you ever get this problem fixed? I have the same problem after replacing gaskets too.
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Old 09-28-2016, 04:14 PM
mendoza88 mendoza88 is offline
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Location: England
Join Date: Jan 2016
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Mein Auto: BMW 645Ci V8 2004
My Solution to same problem

Hi all this my first post. I had the exact problem of the fault codes after doing valve stem oil seals taking both heads off. I did the full works coolant transfer pipe another common problem, new timing chains, upgraded chain guides and oil sprayer nozzle. There's nothing I haven't changed really...

Anyway the problem I had was an air leak around the injector seals leaking air into the system and intake manifold not tighten down fully... oopsy my mistake.. but car had the symptoms of running rough backfiring. And camshaft fault codes 27bb and 27bc camshaft control plus multiple miss fire codes.

I found air leak by spraying carb cleaner around injectors and intake manifold while cranking engine. Engine revs higher if there is an air leak. Note this is can be VERY DANGEROUS not recommended but I live life on the wild side. It can set the carb cleaner on fire when spraying... It did a little for me

Once air leak fixed you need to use a diagnostic machine that can perform comonent function activation. And perform relearn command. I had to do this for the vanos codes to relearn min limits. It involves turning off a/c and ignition on off after 15 sec sort of stuff while the machine does its thing. Did a relearn on the camshaft module as well. Air leaks most likey is ur problem when u get hot air mass readings as well. Im glad it was an air leak for me. I thought i did timing wrong. Pheww..Hope this helps guys
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Old 11-19-2016, 12:02 AM
jerry745i jerry745i is offline
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Mein Auto: 2004 745i BMW
I am having the same problem rn lol
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