2000 Disco II Issues - HELP !

[bgbrown125]

Engine Light Codes

I had the Service Engine Light codes read today on my 2000 Disco II.

P0455 EVAP Emission Control System - Leak (Large) / Checked gas cap....Any ideas on what else to check??????

P0420 Catalyst Efficiency below threshold - Bank 1 (Tune-Up ?????) Which is Bank 1?


Any guidance would be appreciated. THANKS.

 

[joey]

Like I stated in the other post a few minutes ago... start by cleaning the MAF sensor with some non-residue contact cleaner (remove from vehicle first).

 

[bgbrown125]

Thanks Joey, but I still need the additional information listed.