Mercury 25 30 Diagnose and test fee: 95.00 Repair with 1 year warranty 495.00Test fee is waived if repair or replacement is purchased send in ecu Common Problems we can repair: Coils or injectors not workingIAC not workingECU not respondingWater damageFuel pump not working or staying onBroken pinLightning strike or battery hooked up wrong MERCURY FourStroke 25, 30