[Biely]

Greetings from Belarus!

The problem is like this - check engine regularly appears on the panel. Consumption increases, reduced dynamics, sometimes raises the idle speed or just shaking a little. I have two errors - lambda before catalyst (mixture too rich) and after the catalyst (mixture too lean). Both lambda in the first bank. No more mistakes. Exacerbated if the ride is very active.

Any ideas what's wrong? The catalyst?