I've had this wide band for 2years
maybe about 1500 miles (500 miles are dyno/road racing miles)
Currently on E85

Last weekend on my way home from racing event my wideband display showed code "SEND AIR". There's no change to performance just the display is not repsonsive. If i let of the throttle in gear, it pulls vaccume and breifly reads 9.0 before going back to "send air".


I'm not sure what that means.
I've looked online & wideband instructions but it does not mention this "code".
http://www.bmotorsports.com/download...anual-2005.pdf



Does anyone know what I need to do to clear this code?


Thanks - Charlie

 

was it made to run with E85 exhaust energy?

 

No idea was reccomend by tony palo. Also instructions says its okay with all fuel types including methanol.

 

I wouldnt use that setup for e85. I just read their manual. It reads other fuel types like e85 and methanol on the gasoline scale. They used methanol as an example

Since stoich is somewhere in the mid 9s, and that guage only reads 9:1-16:1 so of course its gonna day send air, as it thinks your engine is running super rich.


That thing isnt gonna work on e85

 

If the car sits for awhile, when you turn the ignition on does the wideband display air or send air? If the wideband sensor doesn't have exhaust gasses flowing around it they will display air as the air fuel value. Also if you have a fuel cut on decel sometimes it will display air as well. Since the sensor knows when it's in clean air that's what the wideband will display

 

AFR is only a math calculation from lambda and lambda is universal. So the fuel AFR is irrelevant really. I use gasoline AFR and I run E85. Most EMS systems are geared towards gasoline AFR which makes setup easier.

 

OP, sounds like a trouble code situation. Does not happen often so I do not think there are many topics about it. Pulled up the manual online and it says trouble codes display with 'sen' and typically a number for the code.

I assume you have checked your harness, sensor, etc... so I would call they tech line and see if they can advise what it is referencing since they do not list the codes in their manual.

This. ^^^

The AFX is just as accurate and works fine with ethanol blends... the display unit is just calibrated to do a simple math calculation from lambda to gas a/f numbers. Lambda is an absolute though, it does not matter what type of fuel your on.

Been on E98 with it for a while now and know many people who use it with various ethanol blends. Works great and is a great wideband, very accurate for the money and easy on sensors.