Hello! I have a 2001 LX Sedan with an f23 A1 I have multiple cel codes that point to a short to ground somewhere as the root of all these codes. I just don't know where to start. I need to get it to pass smog in eight days or I'll be without a car. At first it was just throwing a code for the o2 sensor so I replaced it but now there's four codes and they all seem related. I just don't know where to begin. Maybe you can point me in the right direction. These are all the codes: OBD2 DTC report Selected brand: Honda ============1============== P0141 Raw code: 0141 ECU: 0D Status: Confirmed OBDII: Heated oxygen sensor (HO2S) 2, bank 1, heater control - circuit malfunction Honda: Secondary Heated Oxygen Sensor (Secondary HO2S) (Sensor 2) Heater Circuit Malfunction ============2============== P1164 Raw code: 1164 ECU: 0D Status: Confirmed Honda: Air/Fuel Ratio (AF) Sensor (Sensor 1) Circuit Range/Performance; Air / Fuel Ratio (A/F) Sensor (Sensor 1) Range / Performance Problem A/F sensor,or Air / Fuel Ratio (AF) Sensor (Sensor 1) Circuit Range / Performance A/F sensor ============3============== P1162 Raw code: 1162 ECU: 0D Status: Confirmed OBDII: Fuel Temp. Sensor Circ. Short to Ground Honda: Air/Fuel Ratio (A/F) Sensor (Sensor 1) Slow Response; Air / Fuel Ratio (A/F) Sensor (Sensor 1) Slow Response A/F sensor ============4============== P1166 Raw code: 1166 ECU: 0D Status: Confirmed OBDII: Air / Fuel Ratio (A/F) Sensor (Sensor 1) Heater System Electrical Problem A/F sensor heater,or Heated Oxgen Sensor Sensor1 (Primary HO2S) Heater Circuit Malfunction (HO2S) Honda: Heated Oxgen Sensor Sensor1 (Primary HO2S) Heater Circuit Malfunction I feel like these are all related to some kind you f electrical issue. But I could be completely off. Any suggestions on where to begin? I don't want to just start throwing parts at it I want to figure this out before my registration expires. I need this car for work and I'm starting to freak out a little.