Parts & Accessories Spare parts Exhaust sensor connector, catalytic converter replacement. The connector is 50. * Connector function: Reduces sensor reading to normal levels as if the converter is present, and eliminates two catalytic converter error codes. - First code: P0420 Catalyst Bank1 Catalytic converter exhaust No. 1 - Second code: P0430 Catalyst Bank2 Catalytic converter exhaust No. 2 The connector hides only codes P0420 and P0430 and resolves issues related to these two codes. The connector fits all cars. Installation is very easy at any workshop. 4-cylinder cars need one connector. 6 and 8-cylinder cars need two connectors.