Customer questions

BMW 3 Coupe (E92) 335 i - Engine Control Module (ECM) - 29F5

Customer question from May 16, 2016, 11:03:18 AM
symptoms

  • car put in reserve program, yellow light on dashboard

Answer from May 16, 2016, 11:58:54 AM

Hello Sparky584, thanks for your Question in the community.
Your asked fault Code means: 29F5 (P0430) - Catalyst System Effeciency Below Threshold (Bank 2)
If i remember correctly bank 1 is the front 3 cylinders and bank 2 is the rear 3 so this would imply that something is not working correctly in exhaust pipes/catalytic/or the O2 sensors.
Check the rear O2 sensors for both pipes as these are the ones that measure emissions.
Does the vehicle have a completely stock exhaust system?

Greetings
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