2017 Rotax 1503 (Yes ... it's in a Supercharged Sea-Doo)

Greetings all! I'm new to this forum and new to SD premium ... I've been going to school @ SD university. Anyway, I was looking at purchasing a used Sea-Doo, and when I took it out on the water in ran like cr@p! I convinced the owner to bring it to my shop, and when I connected the diagnostic tool, there was a C2111 DTC (erratic crankshaft position sensor CPS) code in memory. I connected my lab scope looking for a 3.7 VAC signal. This is the wave from I pulled from the CPS. Notice the drop outs.



So I used my new lab scope skills (Hat tip to Paul), and installed a new sensor. Here's what it's supposed to look like.



Thanks to Paul I am a parts changer .... but it was the right part!

Good find. Hantek might be "crap" but they're a lot better than no 'scope

The post repair good waveform looks a bit weird though. Is it cranking? With maybe only ~2/3 of a crank revolution on screen?

You're right, I'm using a Foxwell OS 100. They sent it to me (I'm a beta tester). The software is used by many of the low-end scopes. I captured the waveform while cranking (Sea-Doos don't like to run out of the water ... it's not good for the driveshaft mechanical seal.) The service manual says I should see 3.7 vac. I had 3.7, but suspected there was an intermittent fault ... especially with a specific DTC and no other codes.