![]() I believe this is the key for finding the problem. I need to know what tells the ECM to switch the signal line to ground when the key is switched on. ![]() Second test: when you turn the ignition switch on you are supposed to get continuity on the same (brown/black) circuit for a few seconds (this is what causes the fuel pump to prime when the key is switched on), - I have no continuity when the key is switched on.įrom this I can see that the ECM is supposed to earth the signal line to allow the fuel pump to prime when the key is switched on, but for some reason this is working incorrectly. I have disconnected the ECM and checked for a short, there is no short in the harness, it seems like the short is through the ECM. ![]() I know there is a problem on the fuel cut relay signal line.įirst test: You are supposed to have no continuity between the brown/black wire and ground with ignition off - I have continuity. I have tried a different ECM on the bike, same problem. The bank angle sensor and relay test correctly. I have a SP1 here that isn't priming the fuel pump when the key is switched on. Bit of a head scratcher here for any electronics wizards out there.
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