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What these codes means ? plz help What these codes means ? plz help
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Old 3rd August 2012, 12:26   #1
friends11
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What these codes means ? plz help
Hello gentlemen,
last night I had trouble with my car and I scanned it with with my computer.
This is what came up..

CB Fuel Trim bank 2 control limit
CA Fuel trim bank 1 control limit
E3 Fuel trim bank 1, permissible range exceeded
E4 Fuel trim bank 1, permissible range exceeded

Tried to erase but it came up again,

also RPM is being funny not regular.

plz help

Thanks
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Old 9th August 2012, 09:36   #2
vantaam5
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I assume this is from the M54 engine...usually it is MAF or fuel pressure regulator that pops up these codes
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2003 M5 "The Matte Black Money Pit"

 ALPHA-N by EVOLVE,Power remapped-modified heads-Schrick cams-modified throttle bodies and velocity stacks-modified rods and crank-EVOLVE headers
-Willans 4-point harness -CAI with custom built MAF delete tubes fed through fog light covers -lighter oem flywheel-Sachs performance clutch-clutch stop-Drexler differential stock ratio-electric fan with control unit-545i SSK-HEL braided teflon brake lines-IATS reloction-Bilstein PSS9-HD sway bar links-M3 swaybar brackets rear-CF bonnet with vents-subframe reinforcement-40mm wider fenders front and 25mm rear-aluminium ///M pedals and foot rest-CF roundels-LED AE-foglight delete-AP BBK kit 6piston calipers front-CF strut bar front-full suspension rebuild-camber plates with uniballs front-Dinan sway bar-illuminated inner door handles-Alcantara roof liner-M-Audio system- Hamann HM2 10x19" wheels 275/30 front and 295/30 rear

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Old 5th January 2013, 04:06   #3
upstateimports
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There 4 possible causes for these codes- 1 air flow sensor boots dry rotted- 2 PCV hose has a hole (usually from separator to dipstick tube)- 3 Mass Air Flow Sensor- 4 DISA valve leaking.
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