S2000 2005 greddy turbo kit
Aem EMS v2
750 cc inj
320lph fuel pump aem
Aem failsafe gauge

Video of problem =
My current problem is my gauge reads fine at 17% ethanol. But my aem v2 reads it at -17%-20% , it's a range that jumps around, same going for voltage.

I wired in the yellow wire to switch 3 on dplug
Have sw3 rising and falling edge on
Flex fuel input = switch 3.

Flex fuel sensor is fine, it reads the correct ethanol
Gauge also reads fine

Because of this issue, car uses both maps different at whatever the percentage ecu v2 reads. And it's a constant.

Does anyone have any tips for this?


###edit follow -through###
issue is fixed
use thread as an archive for anyone with same problem.

For failsafe gauge with flex fuel option, You have to splice into the green wire, and use that for one of the switches on aem ems v2. In my case; SW3 on dplug. and wire in the yellow wire for 0-5v analog

Turn on rising and falling edge of whatever switch you used; and you should be good to go.

 

I could remote with you sometime, has to do with the switch edges.... sometimes you can make it less sensitive... also it helps if your flex sensor is towards the bottom of the car, not up in the engine bay.

Better flow of the unused fuel.

 

flex fuel sensor is setup under the car
flex fuel rising and falling edge is on. what more can be done towards the edges.

 

turn one on and one off.