2006-2009 Suzuki LT-R450 Service Manual, Page 159Get this manual
FI SYSTEM DIAGNOSIS
"C13" (P0105-HL) lAP SENSOR CIRCUIT MALFUNCTION
DETECTED CONDITION C13 lAP sensor voltage is not within the following range0.5 Sensor voltage4.4 POSSIBLE CAUSE
Clogged vacuum passage between throttle body
and lAP sensorAir being drawn from vacuum passage between throttle body and lAP sensorlAP sensor circuit open or shorted to groundlAP sensor malfunctionECM malfunction