Diagnose Misfires With A Relay | Automotive Oscilloscope Diagnostics | Mechanic Mindset

Can you turn an ordinary relay in to an oscilloscope probe tool for automotive diagnostics? We strip the relay down, connect it up to the PicoScope and see what we can pick on on the ignition coils. This turns out to be a great tool for ignition coil diagnosis and to help diagnose misfires; and this one was free!!

P.S. I meant resistor, not capacitor. Some relays have a diode instead to do a similar job of ‘soaking up’ the spike

Link to PicoScope Waveforms: https://www.mechanicmindset.com/f/waveform-library

USA Product Links:
PicoScope 2000 Series - https://amzn.to/39shJtc
Hantek Automotive Leads x2 - https://amzn.to/300TCyL
20:1 Attenuator - https://amzn.to/3eWAzKc
Back Probes - https://amzn.to/32XGJYa
Alligator Clips - https://amzn.to/3jGeMtR

UK Product Links:
PicoScope 2000 Series - https://amzn.to/314P89D
Hantek Automotive Leads x2 - https://amzn.to/3fj7Yiv
20:1 Attenuator - https://amzn.to/2EAnbyR
Back Probes - https://amzn.to/2Dpmjwk
Alligator Clips - https://amzn.to/318INtF

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More equipment I use: https://kit.co/mechanicmindset

Camera Gear
Canon M50 - https://amzn.to/36XqkEW
Neewer Tripod - https://amzn.to/3lyYfZ0
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Video Links:
Best & Cheapest Automotive Scope - https://youtu.be/1LBKtlpCj_4
Pico 2204A HACKED - https://youtu.be/BvMH-SLl--0
4 CAN Bus Faults Diagnosed - https://youtu.be/f2uPhKd-ETI
CAN Bus Multimeter Test - https://youtu.be/JPE42HSJxAk
5 Easy Oscilloscope Tips - https://youtu.be/nmGubcuzbtU
Quick Misfire Check - https://youtu.be/MOLj5vGIDsg
PicoScope Compression Test - https://youtu.be/V-lxmjy804c
Hantek CC-650 Amp Clamp - https://youtu.be/PrxXLuD5ic4

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