E85 Flex Fuel Signal Wire - Gen 3 LS Swap Add-On

Adds a flex fuel sensor signal wire to your Gen 3 LS/Vortec standalone harness, giving your tuner the input needed to run an E85/flex-fuel sensor for ethanol content-based fueling and timing adjustments.

Note: Running E85/flex fuel requires a custom tune — the base tune included with our engine controller kits does not include flex-fuel tuning.

Designed to pair with our 99-07 Gen 3 LS/Vortec Engine Controller Kit (KIT-GEN3-DBC-AUTO) — note in your order comments if you'd like this added.

Sourced through PSI Conversion.