Alex Van Den Kolk

Replaced all 4 O2 sensors with OEM sensors. P0134 will not clear and I can not pass emmissions test. What's next?

justnspace

iTrader: (1)

physically clear the code by un-hooking battery for at least a minute. this will clear the code and if the 02 sensors are working correctly, you wont get a CEL again...

Alex Van Den Kolk

I did disconnect the battery to reset and the CEL always returns. The O2 sensor wiring did not look damaged when sensors were replaced. I have read the O2 sensor fix forums.

justnspace

iTrader: (1)

I have a bluetooth OBDII dongle that connects to an app on my phone that lets me monitor the 02 sensors.
you have to at least figure out if the 02 sensors are actually reading, and if they're not reading/ready you would have to figure out why

Alex Van Den Kolk

I have the same type of OBD II dongle. How do I check to see if O2 sensors are reading?

justnspace

iTrader: (1)

I believe the free TORQ app allows you to read the signal at the 02 sensor

Alex Van Den Kolk

I use the same app. Looking at the fault log manager screen with P0134 fault code. I do not see where it would allow me to verify the O2 sensor signal.

justnspace

iTrader: (1)

I havent actually used the torq app.
you are looking to see if the 02 sensors have power, ie; is it producing voltage?