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Audi A3 2.0 BMN - Code P2002 particulate trap below efficiency #

Posted by Richard Saddington on September 12, 2011, 11:39 pm

Year of Manufacture *: 2007
Engine Size and Code *: 2.0 bmn
( Optional ) Scanner Used: verus multiscan and dec
( Optional) Fault Codes: p2002

Hello

To any one who may help! The particle light is on on the dash the fault code is p2002 particle trap below efficiency threshhold.engine is in limp mode and will not rev above 3000rpm it is also flat when revving to 3000rpm, the particle pressure sensor has been renewed and the pipes checked to be clear, the pressure sensor is out putting .6 volt which i think is showing no blockage. The ash mass is 43% but yet it stays in limp even when put on a motorway? Any sugestions?

Re: audi a3 bmn particle filter fault

Posted by Sean Mc Gettigan <iframe src='https://members.boardhost.com/ukautotalk8/info/user=UKAT5291' width='330' height='300' border=0 style='border:none;'> on September 13, 2011, 7:12 am, in reply to "audi a3 bmn particle filter fault"
Sean McGettigan

Hi Richard, 43% is the key here.

http://wiki.ross-tech.com/wiki/index.php/Diesel_Particle_Filter_Emergency_Regeneration

Regards
Sean

Re: audi a3 bmn particle filter fault

Posted by Jon Morgan <iframe src='https://members.boardhost.com/ukautotalk8/info/user=ukat3190' width='330' height='300' border=0 style='border:none;'> on September 13, 2011, 7:59 pm, in reply to "audi a3 bmn particle filter fault"
Jonathan Morgan

After replacing the DPF pressure sensor, you need to zero the adaptions & enable a forced regen (a drive at 2200 RPM) 4th gear etc....

The BMN has also had a software update released to improve regeneration procedures on this particularly sooty engine.

Follow the VCDS instructions on the wiki as Sean has posted, it is also worth updating the engine to the latest software for future DPF regens.

Jon.

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