Folks, Got that P0150 again and seems like I am going to replace the OS sensor to see if that works..
Question is what size sensor wrench is best? 22MM??
Thanks

 

I think all O2 sensors are 22 mm. Check out your auto parts stores, they have an assortment of open sided 'flare' wrench-style sockets. I have one in the "crow's foot" style so it goes on the end of a ratchet extension. The open side allows you to slip the socket over the sensor and allows for the wires.

Be sure to use a copper-based or heat resistant anti-seize lube on the threads of the new sensor (I think most sensors come with a small packet of the lube). Try rockauto.com for your new sensor - good price options and fast shipping.