p0138 fault please help

hi i have a freelander v6 that wont start obd fault p0138 bank 1 02 senser had any one else had this and how do i fix it cheers

Isn't that a lambda sensor?
If so I've seen them online for between £50 and £120.
Or for a tenner here.

From the KV6 manual:
The EMS has four HO2S:
l One upstream of each catalytic converter, identified as LH and RH front HO2S.
l One downstream of each catalytic converter, identified as LH and RH rear HO2S.
The LH and RH front HO2S enable the ECM to determine the AFR of the mixture being burned in each cylinder bank
of the engine. The LH and RH rear HO2S enable the ECM to monitor the performance of the catalytic converters and
the front oxygen sensors, and trim fuel.

I bet Nodge will be able to tell you for sure.

bukko said:

Isn't that a lambda sensor?
If so I've seen them online for between £50 and £120.
Or for a tenner here.

From the KV6 manual:
The EMS has four HO2S:
l One upstream of each catalytic converter, identified as LH and RH front HO2S.
l One downstream of each catalytic converter, identified as LH and RH rear HO2S.
The LH and RH front HO2S enable the ECM to determine the AFR of the mixture being burned in each cylinder bank
of the engine. The LH and RH rear HO2S enable the ECM to monitor the performance of the catalytic converters and
the front oxygen sensors, and trim fuel.

I bet Nodge will be able to tell you for sure.

Click to expand...

The V6 has 3 O2 sensors. There is one in each exhaust manifold and one behind the cat in the exhaust system. The sensors in the manifolds are what the ECU monitors the mixture with. The post cat sensor is there purely to monitor the function of the cat to comply with some Eurocrat regulation!!
P0138 is bank 1 sensor 2 which means it's the post cat sensor. It's failing is'nt going to stop the engine running as it's just a monitor sensor.
How did the non start come about?

think he's gone, perhaps he's in the introduce yourself section...