Hi, I desperately need help. I have a 1998 LR Disco, emissions test came back with these codes: 1194 (Sensor High Resistance Downstream), 1193 & 1191 (sensor heater circuit open downstream, and 560 (Battery voltage below minimum fault).

I can fix the battery, but have no idea how to repair the other codes, can anyone help! Im trying to get this done today so I can register my vehicle and avoid a huge ticket. Thank you!!!

 

Have you checked your downstream O2 sensors and verified that they are there or plugged into the harness ?

 

You either have a bad(or no) connection at both post-cat o2 sensors, or they are bad.