unheated O2 sensor?

[mechyank]

PS The price difference ? Widebands are usually more expensive than narrowbands, but they also need a controller...more expense!

Thanks for the info 800vtwin. The idea of using the wideband more as a tool is intriuging. I understand using someone else's table would only be a starting point to get the bike running.

24c or anyone: What is the price difference approximately? What is this controller for a wideband O2 sensor you mentioned? I have a Microsquirt.

[800vtwin]

Check out DIY autotune (.com) They sell an inovative LC1 kit (industry standard) for about $200.

The LC1 is used with a laptop and/ or directly into microsquirt. There is also an LM1 / LM2 that are hand held units.

[24c]

You can also use the TechEdge WideBand controller, which is Australian, and comes in various forms. I bought a TechEdge 2J1, which has gone on the dyno now, but I also have an LM1 (that I will use on the road to datalog/tune my MicroSquirt tables). The newer and more expensive Innovate LM2 looks good too.

Re costs, a generic narrowband sensor in the UK is around £20, whereas the wideband Bosch is three times that, and you have to factor in the cost of the controller. Over here a TechEdge with sensor is slightly cheaper than the Innovate LC1 at around £150, but there are some cheaper "DIY" Wideband controller projects out there too, which you can build for less. http://www.14point7.com/ has one.

[mxrob]

My charging system is marginal as stock and would certainly not like the extra whatever amp load for a heated sensor. I am using the O2 sensor for fuel economy on a 1100 motorcycle. When I need it most is at cruising speed and the exhaust is sure to be hot. Can I just use an unheated O2 sensor?

If you have an 1100cc motorcycle you likely have plenty of charging system capacity for a heated wide band sensor. I run a wide band LM-1 (now LM-2) unit on a DR650 Suzuki dualsport which has only a 200 watt stator. I've never run into any charging system capacity problems.