Camaro39

Any suggestions on where to place the e85 sensor would close to the fuel rail be fine or should it be placed closer to fuel cell

LLLosingit

iTrader: (4)

I put mine on the return side after the regulator, My fuel system is all aftermarket line not stock. My thinking was I don't want a restriction on the pressure side of the fuel system and still close to the injectors for be able to react in a reasonable amount of time.

stevieturbo

Really doesnt matter, but the low pressure return makes most sense.

Speed is zero issue, it's not like the content of your fuel changes rapidly.