Yamaha FJR1300R Service Manual

Also see for FJR1300: Owner's manual Owner's manual Owner's manual Owner's manual Owner's manual

Contents

7 - 24FIFUEL INJECTION SYSTEMCode No. 32 Symptom The amount of air-fuel ratio feedback compensation is maintained contin-uously in the vicinity of the lower limit (air-fuel ratio is rich).Used diagnostic code No. 01 (throttle position sensor)Inspection operation item and probable cause Operation item and countermeasure ReinstatementmethodDefective O 2 sensor(unable to output a lean signal).Replace if defective. Reinstated bystarting the engine,warming it up untilthe coolant tem-perature is 60 °C(140 °F) or more,and then running itbetween 2,000 ~3,000 r/min untilthe engine troubleindicator turns off.Excessive volume of fuel injected by injector.Open circuit on the 5 V side or short circuit inwiring harness or sub lead.Repair or replace if there is an open or shortcircuit.Main wiring harnessBlack/Blue - WhiteGray/Green - BlueThe fuel pressure is too high.Compare the fuel pressure at idle and withthrottle open.About the same → NormalToo high → Inspect the pressure reg-ulator.Inspect the pressure reg-ulator hose for pinching orkinking.Inspect the fuel returnhose for pinching or kink-ing.Inspect the throttle posi-tion sensor.Other:Malfunction in the fuel system (clogging,etc.).Replace if defective.Refer to “CHECKING THE FUEL PUMP ANDPRESSURE REGULATOR OPERATION”.Repair or replace if there is a malfunction.Repair or replace if there is a malfunction.Execute diagnostic code 01.Repair or replace if there is a malfunction.Connected state of connectorInspect the coupler for any pins that mayhave pulled out.Check the locking condition of the coupler.If there is a malfunction, repair it and connect itsecurely.O 2 sensor couplerSub wiring harness couplerMain wiring harness ECU couplerSub-wire harness coupler