Reply To: Hyosung GD250R FI LIGHT Sep 8, 2020 at 12:43 AM #4859 ♠️ M77👑 Admin Topics: 40Replies: 3,033Country: UKBike Model: GT P0171 = Too much air or fuel system is lean. The BMC flows more air than a stock unit, the ecu will sense that with its sensors near the airbox or via lambda sensor as emissions burnt is sensed to be leaner.
