AEM Electronics Flex Fuel Ethanol Content Sensor Kit, -6AN (30-2201)
Fits F-150 2.7L EcoBoost · 3.5L EcoBoost · Raptor
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Price tracked 6 times since Jul 12, 2026: low $349.95, high $349.99, currently $349.95.
where to buy · 2 retailers tracked
An ethanol content sensor that reads the fuel's ethanol percentage and sends that signal to a supporting ECU or tune, letting the truck run E85 blends safely.
why this one — Per AEM it is the same sensor as the barb-fitting kit, so pick this $349.95 version if your fuel system already runs AN fittings. It needs a supporting tune to matter, and ethanol use can affect warranty, so check that first.
Fuel system hardware is not itself an emissions-control component, but running on E85/high-ethanol blends requires supporting tune changes - verify local fuel regulations and powertrain warranty impact before installing.
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