High-G FJR Junkie!
Join Date: Jan 2013
Location: Millgrove, ON, CA
The ignition pickup is behind the right side timing cover, the one with the large round access plug with the big screwdriver/coin slot in it. The wires travel up the forward side of it in a clip or two, then up under the throttle bodies to connect to the main harness. If there was a cut/chewed through/broken wire, the bike would not start. If pinched by removal/replacement of the timing cover, bike can run rather crappily since the ECU is not getting clean signals.
Other sensors... if coolant temp or cylinder identification sensor is unplugged/no circuit, bike will not start. ECU inteprets signals.... coolant temp will affect richness at cold, normal at hot. Intake air temp sensor (ambient air in airbox) will adjust mixture. Any corrosion/partly shorted wires/shorted can also affect what the ECU sees. MAP sensor detects vacuum and altitude, sends a voltage to the ECU.
I would unplug the ECU and replug just to refresh the connections since it's been sitting. Try manually moving the crankshaft (right timing cover, 14mm socket, rotate clockwise) say 90 degrees and see if the one injector still shows constant ground, i.e, ECU given different crankshaft position info.
Have you accessed the diagnostic screen to see if there are any codes?
Keep yer stick on the ice....
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