i have a 2000 civic with a b16 manual swap..my car is throwing a p1399 code, which is a controlled ignition system or misfire.. and a p0141 code which is a 02 sensor heater circuit malfunction..(bank 1 sensor 2). i have no idea what to do. i need help. asap... what is wrong with my car and what should i do..

 

did you try resetting ecu first?

 

how would i go about doing that.
just un hook the battery..