[BigMatt]

Just got my flex fuel sensor installed from DSX. Only takes a few minutes.
Step 1: Disconnect the battery
Step 2: Disconnect the fuel line going to the fuel rail and install the sensor. I used the passenger side near the brake block. The wiring harness plugs into the coil pack then back into the factory harness.
Step 3: Unplug the computer harness (one closest to the radiator). One is wrapped in grey electrical tape, one is wrapped in black, you want the one wrapped in black.
Step 4: Pop off the face of the harness using a small screwdriver
Step 5: Pop off the back side of the harness and cut the factory zip tie to separate the wires.
Step 6: Find pin 40, remove the factory hole cover, I just pushed it through using the small screwdriver. Then install the white wire from the DSX harness into pin 40 making sure the pin is clicked in.
Step 7: Throw on a new zip tie, Click the front and back of the harness together, reconnect the computer, and reconnect the battery.