Tuning a vehicle with E85 can be a tricky proposition as most E85 pumps say right on the label "minimum E70". If the fuel at the pump varies in ethanol content by 15% or more, your air fuel ratio can change by half a point! Take the guesswork and testing out of the system by tuning your car with the use of an ethanol content sensor and the Link G4+ or G4x ecu, or similar. Tune 2 maps at 2 different ethanol content levels and get seamless operation with linear interpolation between those tuned maps, and beyond.
Optional: Add AN adapter fittings to the GM style fuel line couplings. Optional: Add a connector or pigtail.
NOTE: Recommended to install in the return line of the fuel system to not impede flow to the rail.
NOTE: The product you receive will be the same as one of the two pictured. They perform the same and electrically use the same connectors and pinout.
NOTE: Other harness options available.
