I've had this Schwinn Mendocino ebike for about a year now, and the only time it worked properly was when I test-drove it and bought it slightly used. It's a pedal-assist bike, and when I got it home, the assist would only kick in part of the time when I was pedaling. As the guy I bought it from was an ebike mechanic, he said it was probably the crank rotation sensor and shipped me a replacement. The only problem is the wire on the one he sent me is too short, so now I'm striking out on my own to figure this thing out.
The first picture shows the bike's original crank sensor circled in yellow, as well as the wire end I cut from it. Hoping I didn't make a mistake in cutting that wire. The circular sensor seems to be pressed into the frame somehow, as it shows no signs of coming off. The mechanic guy said don't worry about that; leave it on and put the other crank sensor on top of it, and it should work fine. The top of the picture shows where I traced the sensor cord back and unplugged it right before it goes into the battery case. The end is circular and has three small pins.
How should I go about fixing this bike? What sensor should I order?
Also, I took it apart about a year ago and don't remember exactly how the wheel with magnets in the second picture integrates into the whole mechanism. I'm sure it didn't come with the sensor he sent and that it's part of the original crank sensor system. Would it be ok to leave this magnet wheel off when the new sensor gets put on?
The first picture shows the bike's original crank sensor circled in yellow, as well as the wire end I cut from it. Hoping I didn't make a mistake in cutting that wire. The circular sensor seems to be pressed into the frame somehow, as it shows no signs of coming off. The mechanic guy said don't worry about that; leave it on and put the other crank sensor on top of it, and it should work fine. The top of the picture shows where I traced the sensor cord back and unplugged it right before it goes into the battery case. The end is circular and has three small pins.
How should I go about fixing this bike? What sensor should I order?
Also, I took it apart about a year ago and don't remember exactly how the wheel with magnets in the second picture integrates into the whole mechanism. I'm sure it didn't come with the sensor he sent and that it's part of the original crank sensor system. Would it be ok to leave this magnet wheel off when the new sensor gets put on?
![1_f684316f6ad66e9563fce87b7845a96d2c7e3552.jpg](https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulletin/1500x2000/1_f684316f6ad66e9563fce87b7845a96d2c7e3552.jpg)
![2_1393807a8af5446d64200a63fd58074b59742ea6.jpg](https://cimg7.ibsrv.net/gimg/bikeforums.net-vbulletin/2000x1504/2_1393807a8af5446d64200a63fd58074b59742ea6.jpg)
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