I have the code P0423 on my 2006 Volkswagen Golf 5, which sensor I have to change?

Question

I have the code P0423 on my 2006 Volkswagen Golf 5 1.9L TDI, which sensor I have to change?

Answer 1

There is a ECU reflash avaliable if your car does not already have, have it check out first

Answer 2

P0423 VOLKSWAGEN - Heated Catalyst Efficiency Below Threshold Bank 1

Read more: https://www.autocodes.com/p0423_volkswagen.html