Fotis Posted July 25, 2020 Report Share Posted July 25, 2020 Hello i was checking the crank and cam sensor on a seadoo jetski and i found that i have no crank signal no matter how i wire it. It's a 2 wire reluctor sensor 36-2 teeth. the cam sensor is optical with 3 wires. Cam signal is okay but it needs to be reversed i tried to change the wires and it still did not change the signal. Trigger Scope Log 2020-07-24 4;14;32 pm.llg Trigger Scope Log 2020-07-24 4;19;39 pm.llg Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 25, 2020 Report Share Posted July 25, 2020 The triggerscope doesnt lie, if it shows no signal then there is no signal. If you are 100% sure the wiring is correct then it is possibly some odd type of active sensor. If you unplug the loom from the ECU and measure resistance between the trig 1 wire/pin and the shield/gnd wire/pin in the ecu plug what resistance do you get? Quote Link to comment Share on other sites More sharing options...
Fotis Posted July 27, 2020 Author Report Share Posted July 27, 2020 I get about 17.34K ohms Quote Link to comment Share on other sites More sharing options...
Adamw Posted July 27, 2020 Report Share Posted July 27, 2020 Ok, that suggests either you have a bad connection or the sensor is not a reluctor/VR. A VR sensor will usually have a resistance between 300-1200ohm. Quote Link to comment Share on other sites More sharing options...
Fotis Posted July 27, 2020 Author Report Share Posted July 27, 2020 I measured the resistance between the shield/round and trig 1 and it was 17Kohms the sensor has not resistance at all. So it's it has to be dead. Measured a new sensor and it gave around 900ohms. Quote Link to comment Share on other sites More sharing options...
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