O2 Sensor Codes on 2002 Disco 2
 

Question for other owners who may have experienced this. I just bought a 2002 Discovery 2. Scanned the OBDII, and I'm getting 4 codes: P0130, P0135, P1884, and P1129.

Any insight with this combination of codes? The truck runs decent, but definitely sounds like the idle could improve, and it is sluggish as all get out under acceleration. Almost sounds/feels as though it has a misfire, but no code for one. I'm new to Rovers (but mechanically experienced), so insight is much appreciated.