pico scope 2 channel older model
Although it has been superseded, the 3223 is still more than capable of measuring cam & coil signals - and some.
Those captures are strange indeed, although if they were an accurate reflection / measurement and those weird bits were in the car it could still run well. Possibly a bad earth or interference ? Genuine scope leads ?
The downside of the 3223 is that you can damage a channel if you forget to use an attenuator. Have you tried it on another car ? How about trying Channel B.
If it is faulty talk to Pico, they don't make a big deal of repairing it neither do they demand an arm and a leg.