Help! DC5R Check Engine Light codes!

[DC5.Raven]

I turned the ignition on my DC5R and I got the check engine light yesterday morning.

Got an OBD2 code reader today and the following codes came up:

41-01 HO2S (B2 S1) Heater Failure
41-04 HO2S S1 Heater Failure

I think it has to do with one of the O2 sensors, just not sure which one.

Can anyone help?

Thanks!

[TypeS]

What I found in my holy bible;




HO2S= Heated Oxygen Sensor, sensor used to measure the amount of oxygen in the exhaust, which is used to adjust the air/fuel mixture in the engine.

B2= Bank 2, this is a location identifier, the engine has 2 banks, 1 and 2. Bank 1 refers to the bank nearest cylinder #1.
S1= Sensor 1, all engines have an oxygen sensor before and after the catalytic converter, S1 refers to the sensor before the CAT, S2 is after the Cat. Conv.



Translation:

Your primary 02 sensor's heating element has failed. You will have to replace the complete sensor.

[DC5.Raven]

Very helpful info.
Thanks heaps!

[BLV-27J]

where did you get the reader from?

[DC5.Raven]

Went to a mechanic to borrow. You can get cheap ones from eBay for $80

[r3ckless]

Denso o2 sensor?

[munkaii]

OEM sensor is denso for S1