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View Full Version : Help! DC5R Check Engine Light codes!



DC5.Raven
15-09-2011, 11:10 AM
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
15-09-2011, 02:58 PM
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
15-09-2011, 05:02 PM
Very helpful info.
Thanks heaps!

BLV-27J
15-09-2011, 05:23 PM
where did you get the reader from?

DC5.Raven
15-09-2011, 05:45 PM
Went to a mechanic to borrow. You can get cheap ones from eBay for $80

r3ckless
16-09-2011, 06:31 AM
Denso o2 sensor?

munkaii
17-09-2011, 11:41 AM
OEM sensor is denso for S1