FRKWOO

i recently have a engine check light come on and i checked it today for the codes and these two came up:

P0131 Primary Heated Oxygen Sensor (Primary HO2S) (Sensor 1) Circuit Low Voltage

P0141 Secondary Heated Oxygen Sensor (Secondary HO2S) (Sensor 2) Heater Circuit Malfunction

i dont know what they mean by low voltage and heater circuit malfunction?

im running d16y8 with '00 ex wire harness and a p2p ecu in a '00 ek



thanks ht!

FRKWOO

since the codes came up my car been riding really sluggish and feels like a big loss in power...

cherroneballs

have you tried a new o2 sensor there could bea short in it. just throwing that out there.

FRKWOO

no didnt get a chance yet i just want to understand the codes right now and see if theres anything else i can do and getting a new o2 would be my last resort

The_Honda_Guy

Wasn't it you that had a problem with the harness? Are you sure you have the correct connectors plugged in?

FRKWOO

yea im sure ^^^

Former User

P0131:
If the wiring/ECU turns out not to be the problem, then check the fuel pressure. If it's fine, then replacing the primary O2 sensor should fix the problem.

P0141:
If the wiring/ECU turns out not to be the problem, then replacing the secondary O2 sensor should fix the problem.

FRKWOO

ok thanks i will try that and get back to you guys thanks for all the help