Hondata

I am confused as to where to wire the Ethanol content analyzer input on my P28 s300 ecu? This is not the v3. It's the older s300 r12 model or at least that's what it says on the chip board.

I bought the Zeitronix ECA 2 kit with ethanol content analyzer. The Hondata instructions shows "Analog D10 ELD" as the input. Where is this input on the ECU? On my s300 I see analog inputs AN 0 through 7. AN0 has wideband signal wired into it and the remaining wires are not used.



From what I understand I need to wire the White/Blue wire coming out of the Zeitronix Ethanol content analyzer into my ECU so it can read the signal. I also tested the voltage on this wire while my car running and I was only seeing 0.36 dcv on multimeter and "E10" on the ethanol gauge. I have not put ethanol gas in my car yet.

ECA Wire Colors Function
ORANGE +12 volt switched power connection (ex: ignition)
BROWN Ground connection
GREEN Fuel Sensor Output
BLUE Fuel Temperature analog output
WHITE/BLUE Ethanol Percentage analog output
WHITE/GREEN Ethanol Content / Fuel Temperature Display Toggle

Those are the ECU pins that those inputs are located on.

http://www.hondata.com/help/smanager/ecuconnectors.htm

Thanks for the link. Do I splice into that D10 wire with the existing wire intact or do i cut the existing wire and only have this ethanol signal connected to it?

So this is the correct wire that I need to splice into D10? (WHITE/BLUE Ethanol Percentage analog output)

You must cut the wire, as it can not longer be connected to it's original location. If that is the signal wire from the sensor then it is correct. You will need to consult the instructions that came with that unit.

Once I have the D10 connected and I set that in SManager how do I check and see if SManager is actually seeing the voltage?

I added a gauge "value" under Display tab and picked ELD. It was showing .49v while my external ethanol gauge was reading E-10. If I unplug the ethanol analyzer the ELD voltage increases. I just want to make sure my setup is right before I go for dyno tune.

Thanks.

Use a multi-meter to see if the output matches what it is datalogging.