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7 Series - E65 / E66 (2002 - 2008)
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  #1  
Old 01-12-2013, 01:17 AM
KINAMULLAH KINAMULLAH is offline
BIGGIE
Location: uk
 
Join Date: Dec 2012
Posts: 6
Mein Auto: bmw 745
Question Variable intake system Problems and misfiring

Hi all,

Problems with my e65 745i after putting it on the Launch pad the problems that keep coming back are bad 02 sensor heater on bank before cat, code 2715

rough idling on all cylinders, this does clear up after a reset but then comes back after around an hour, several misfires detected.

Variable intake system, plausibility and temperature warming threshold, code 2820 and 2821

Thermostat stuck code 279b

I need help guys......

Last edited by KINAMULLAH; 01-12-2013 at 01:27 AM. Reason: spelling mistake
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  #2  
Old 01-13-2013, 03:08 PM
KINAMULLAH KINAMULLAH is offline
BIGGIE
Location: uk
 
Join Date: Dec 2012
Posts: 6
Mein Auto: bmw 745
i really need help guys..........
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  #3  
Old 01-13-2013, 03:16 PM
7Rage 7Rage is offline
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Location: Long Beach, CA
 
Join Date: May 2012
Posts: 183
Mein Auto: 2007 750Li
what ever controls timing for intake.... VANOS no? they go bad.... thats what i can think of... i mean if something literally broke in ther, your car would not run right, or at all... as far as misfires go...

thermostat does go out, thank the gods for it being stuck open and not closed... need to replace TS..


replace TS first.... maybe it is stuck half open or closed... other errors are temp related my first thing.....

have you checked running temp with OBD scanner...?

Last edited by 7Rage; 01-13-2013 at 03:19 PM.
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  #4  
Old 01-13-2013, 03:35 PM
KINAMULLAH KINAMULLAH is offline
BIGGIE
Location: uk
 
Join Date: Dec 2012
Posts: 6
Mein Auto: bmw 745
Nope havent checked the running temperature.....

car is running absolutely fine.... accelerates perfect and no other issues.....

I dont know what to do. Have ordered a new Thermostat unit so waiting for it....
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