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FJR Motorcycle Forums
Technical & Mechanical Problems
FJR wont start
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<blockquote data-quote="Constant Mesh" data-source="post: 769904" data-attributes="member: 615"><p>Did you test both 15 amp fuses next to the battery's negative post? One is a spare fuse and the other one powers the fuel pump and injectors. I believe the fuse nearest the battery is the fuel injection system fuse. The other fuse is the spare.</p><p></p><p>You'd likely get an error code if this fuse was blown. As you know when you first switch on the ignition the fuel pump relay is cycled on a few seconds. This relay sends power to three components -- the fuel pump, the injectors, and an input to the ECU.</p><p></p><p>So if the ECU has powered the fuel system relay coil and it's not getting feedback via the above ECU input then there's an obvious problem and the ECU most likely spits out an error code.</p></blockquote><p></p>
[QUOTE="Constant Mesh, post: 769904, member: 615"] Did you test both 15 amp fuses next to the battery's negative post? One is a spare fuse and the other one powers the fuel pump and injectors. I believe the fuse nearest the battery is the fuel injection system fuse. The other fuse is the spare. You'd likely get an error code if this fuse was blown. As you know when you first switch on the ignition the fuel pump relay is cycled on a few seconds. This relay sends power to three components -- the fuel pump, the injectors, and an input to the ECU. So if the ECU has powered the fuel system relay coil and it's not getting feedback via the above ECU input then there's an obvious problem and the ECU most likely spits out an error code. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
FJR wont start
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