wideband options...please advise

[konarider94]

I have a bosch LSU 4.9 sensor at home just waiting to get used on something. I was looking at the innovative LC1 kit but it uses the lsu 4.2 wideband.

Are there any options for me to use the wideband that I have? Im just hoping to save some money by not having to buy another sensor.

 

[konarider94]

i found an option. the tech edge controller.
http://wbo2.com/2j/2j9.htm

anyone ever use a tech edge?

I found it after reading through the ecmspy tuning guide. Apparently the 4.9 is better than the 4.2.

"Some WB sensors cannot deliver enough current to maintain the output voltage when
connected to a Buell ECM due to the low input impedance of the ECM. In simple terms,
the ECM will measure the AFR erroneously. The Innovate LC-1 suffers from this issue,
whereas the Tech-Edge is reported not to."

 

[theoctopus]

Looks like it would work fine.

The LC-1 gets close enough for normal use, but it's up to you if you want to spend the extra money on a 4.9 controller.

 

[d_adams]

PLX Devices works fine too, uses the 4.2 sensor though. I've been using a dual setup on my 1125 since early last year with no issues.

 

[xtremelow]

Just got mine in the mail today. Say thanks to Dave and Octo for getting me to jump on the bandwagon here. I will also be running an AFR gauge so mine won't be up for sale any time soon.

 

[d_adams]

My wideband setup

 

[konarider94]

The LC-1 gets close enough for normal use, but it's up to you if you want to spend the extra money on a 4.9 controller.

i can get the tech edge for 160 without the sensor, which is fine because i have a 4.9 sensor sitting in a box brand new right now. long lead time since it comes from australia though. if there is no real advantage to the 4.9 i might go with the 4.2. I think i have the 4.9 because i was doing lean burn tests before. out to the lean burn misfire limit i was getting lambdas of 1.6-1.8, not on my buell of course.

 

[konarider94]

is the tuning process any different with a wideband than with a narrowband. can the buell ecm log the wideband data through ecmspy or do you log the data separate and change the fuel maps yourself. correct me if im wrong but megalog can modify the map on its own based on the log?.

 

[d_adams]

I don't think the buell ecm has that function built in.

 

[theoctopus]

You can do the log separately, assuming you tap into the appropriate wires in the ECM (TPS/RPM at a minimum).

Alternatively, you can turn off all the corrections on the ECM, then datalog wideband data THROUGH the ECM using ECMSpy. Although the ECM cannot "make sense of wideband data, it will not throw a code because you will have turned the O2's effect on mapping off.

Either way, if you use MLV, you can set sensor parameters to any range that you'd like for VE analysis. All you have to know is the operating parameters of your sensor/controller, and the data can be used to tune.

 

[konarider94]

your setup looks nice d_adams, looks like more $$$ than i want to spend though.

and thanks octopus. this stuff sounds confusing at first but i dont think it will be all that hard. think its best to start from stock or the race map?