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P0134 Error Code
Posted: Sat Oct 16, 2004 5:33 pm
by ares650
This past two weeks I have been getting the error code
'P0134 O2 Sensor CKT No Activite Bank1 Sensor1', every other day. I have stock exhaust, stock cat, greddy turbo kit, and the KPro. In the K-Manager software I do not have the CHECK on Disable P0134. What do you think is causing this CEL to come ON?
Posted: Sun Oct 17, 2004 12:39 pm
by Hondata
Do you have the OBDII functions disabled?
Posted: Sun Oct 17, 2004 4:58 pm
by ares650
Hondata wrote:Do you have the OBDII functions disabled?
Yes I do, Would these matter?
Posted: Mon Oct 18, 2004 8:46 am
by Hondata
The ECU uses the secondary o2 sensor to monitor the promary o2 sensor. If you disable OBDII functions then after a certain number of driving cycles the ECU will decide the primary o2 sensor is bad.
So, don't disable the OBDII functions unless you need to, otherwise disable P0134 as well.
Posted: Mon Oct 18, 2004 8:53 am
by ares650
Hondata wrote:The ECU uses the secondary o2 sensor to monitor the promary o2 sensor. If you disable OBDII functions then after a certain number of driving cycles the ECU will decide the primary o2 sensor is bad.
So, don't disable the OBDII functions unless you need to, otherwise disable P0134 as well.
So if I would uncheck the OBDII, then I shouldn't have anymore problems, right. When I put in my test pipe with 3in exhuast then I should disable the OBDII and P0134, right.
Great, Thank You.
Posted: Tue Oct 19, 2004 9:23 am
by Hondata
Correct. Good luck and have fun.
Posted: Mon Nov 01, 2004 7:01 am
by ares650
Hondata wrote:The ECU uses the secondary o2 sensor to monitor the promary o2 sensor. If you disable OBDII functions then after a certain number of driving cycles the ECU will decide the primary o2 sensor is bad.
So, don't disable the OBDII functions unless you need to, otherwise disable P0134 as well.
I did as you said and the error has come back twice since my last post, what do you think of that?
Posted: Mon Nov 01, 2004 7:17 am
by Hondata
Do you have the secondary o2 hooked up? Do you have a cat?
Posted: Mon Nov 01, 2004 7:44 am
by ares650
Hondata wrote:Do you have the secondary o2 hooked up? Do you have a cat?
From my frist post.....Yes, I do have the secondary O2 hooked up and the stock cat in the car.
Posted: Tue Nov 02, 2004 3:10 pm
by Hondata
I think you will need to look at why the P0134 error code is being generated as per the manual. Check A/F ratio while driving as check that the short term trim is not getting excessive. Otherwise I suspect that unplugging the 2nd o2 sensor will stop the P0134 error code occuring.