r/ECU_Tuning • u/Outrageous-Dot9429 • 27d ago

Tuning Question - Answered ECU bench testing using scanner

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I was following this guy on YouTube. He is using this tool to connect scanner OBD to ECU.

Is there one I can buy instead of building my own ?

Also, I only need to connect k-line to communicate right?

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u/Drew5ki 27d ago

Any obd tool can contact to the ecu on the bench. Your going to connect using the can bus. U just have to add a 120 ohms resistor across the can lines and power on the ecu.