It's worth trying to clean the catalytic converter as a first step, as it might resolve the issue if it's just a minor clog. Use a catalytic converter cleaner and follow the instructions carefully. If the light remains on, further inspection might be needed. Let me know how it goes or if you have any other questions!

Jeg har en Nissan Note og motorlampen lyser. Jeg fikk en P0420-melding. Er det tilrådelig å prøve å rengjøre katalysatoren først før du tar ytterligere skritt?

P0420 Melding: Trenger jeg å rengjøre katalysatoren?