P0420 is an obd2 error code (dtc) that can be caused by a faulty catalytic converter, faulty o2 sensors or problems with the exhaust.
25+ Bmw X5 P0420
PNG. Repair information for p0420 code. The p0420 code is a very popular one and that's why there's a site dedicated to that specific trouble code.
Bmw X5 Catalytic Converter Cost from www.fcpeuro.com
Catalyst system efficiency below threshold (bank 1). 27ce oil level sensor fault. After driving 20 minutes the vehicle had p0420 and p0430 catalytic efficiency faults.
Catalyst system efficiency below threshold (bank 1).
The p0420 code is stored in memory when the ecu detects a low efficiency in the catalyst system for bank number 1 (the bank of cylinders where cylinder number 1. Reset fault codes and if issue occurs again vehicle will need the front and rear. P0420 is an obd2 error code (dtc) that can be caused by a faulty catalytic converter, faulty o2 sensors or problems with the exhaust. We got the following from a local bmw service garage (not a dealer) and it's not setting well with me:
