Bosch MED9.1 DTC Remove

[faris1983]

Hi,
I have a CAT-LESS Down pipe on MK5 GTI, so I have the fault
P0420 Catalyst System; Bank 1: Efficiency Below Threshold

Could anybody help removing the dtc fault?

[ecuprogramer]

Hi yes help you for godd ori dtc error code off solution....

reputation + thnx button for help

[faris1983]

Thanks....