error code “P0141 O2 sensor heater circuit malfunction”.

nunoctr · Post by **nunoctr** » Fri Jun 26, 2009 6:56 am

Hi,

I have a FN2 civic type R

With the hondata ECU reflash group N I had before the engine light was always off.

I now upload to my OEM ECU the flashpro calibration "reflash group N" and the engine light is on with the error code “P0141 O2 sensor heater circuit malfunctionBank 1 Sensor 2"

I didn’t change nothing in the car.

I have a race header. Is that it? can I run the car?

What is the problem?

Thanks in advance

Nuno

mw1978 · Post by **mw1978** » Fri Jun 26, 2009 2:41 pm

Nuno i have the same problem. After i sold my reflash i instelled stock ECU and O2 sensor is enable. I drive with check system hole month and made about 1000km with any problems. Next week i'm going to install flashpro and disabled this check system light.

nunoctr · Post by **nunoctr** » Fri Jun 26, 2009 2:46 pm

thanks marcin,

Hondata, why can't we disable the second 02 sensor with a MAF calibration?

I put a MAP calibration (from the honda SI) and disable the 02 sensor, but I can't do this with the group N calibration.

Why is that?

mw1978 · Post by **mw1978** » Fri Jun 26, 2009 3:31 pm

Did you try in calibration window CLOSED LOOP
ther is ON/OFF primery oxygen sensor enabled and ON/OFF secondary oxygen sensor enabled

nunoctr · Post by **nunoctr** » Fri Jun 26, 2009 3:40 pm

there is no closed loop window in a MAF calibration. Only in a MAP calibration.

mw1978 · Post by **mw1978** » Fri Jun 26, 2009 10:56 pm

i think you should install FN2 MAP calibration with racing header...