Trying to do some research on the different sensors and wondering how many have made the switch? Temperatures are claimed to be much lower using them. If you have made the switch what is your experience with them?

 

Your ECM is designed to work with the narrow band sensors so just changing the sensors most likely make it not run well. You'll need a tuner to use the wide band units. The TMax uses the wide band ones. Probably the reason you heard that it runs cooler is that the tuner is adding fuel to the mixture so the motor is not running as lean as a stock setup.

 

but I really don't understand the difference between narrow or wide band. Hopefully someone will jump in with some actual knowledge on the subject.

 

1. Function
   
   
   • The oxygen, or O2, sensor measures the quantity of oxygen that has not been burned at the exhaust manifold. This information tells the car's engine whether there is too little or too much oxygen within the combustion chamber for a balanced air-to-fuel ratio.
     
     
   Features
   
   
   • A narrowband oxygen sensor only reports if the engine is performing at the ideal air-to-fuel ratio of 14.7-to-1. In contrast, a wideband oxygen sensor can actually quantify values between the air-to-fuel ratios of 9.65-to-1 and 20-to-1.
     
     
   Significance
   
   
   • For car enthusiasts, the exact ratio reporting of the wideband oxygen sensor allows more precise tuning of the engine for better performance. With the narrowband sensor, the user only knows if the engine is running high or low on air, but there is no exact measurement.
     
     
     

 

I can't imagine that anyone has "made the switch". Although the name is similar, and the OEM goal of running the Oxidizing and Reducing Catalysts at peak efficiency, while delivering maximum fuel economy and performance is enhanced when using wide band O2 Sensors; the signal each puts out is quite different, and even more importantly the programing for the computer that reads them is radically different. In short; if you're going to change O2 Sensors, you will need to replace the computer that is "reading" them as well. If you are starting from scratch, or replacing an entire system, a wide band O2 Sensor (cost no object) is probably more desirable and tunable. Much has been written about the subject since Bosch and Volvo first used them in a production automobile; the 1977 Volvo B21 and called it the Lambda-Sond system. I'd recommend starting here as a primer to O2 Sensors for the layman: http://en.wikipedia.org/wiki/Oxygen_sensor

 

That explanation helped a lot.

 

I have the PV too but only the NB O2 sensors. The WB sensors for the PV are to get meaningful data to improve your VE maps in the area outside of the cruise range where NB works well. If you only are running the WB sensors, then you are in Open Loop - your sensors are not talking to your ECM but to the extra PV device that you put on your bike. I have not studied how you use that device, but somehow the info it gets is used to improve your VE maps in a much more accurate way than those of us with NB can.

The WB sensors work in the cruise range also, but its' key advantage is the ability to provide the accurate O2 info in the areas outside of the cruise range.

 

The O2 sensors on HD's cannot be replaced by anything but the same kind, narrow band.

 

You can and people do use Wide Band sensors on Harleys, they just cannot talk directly to the ECM. The data/info they collect can and have been used to improve tunes.

 

Nope,did clear away with them with PC-V