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Testing fuel injector with scope

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2 years 1 month ago #55647 by kamiwolf0893
Testing fuel injector with scope was created by kamiwolf0893
Hi guys, I've an mr2 with a 1zz engine. Is it the live control wire I back-probe on the injector plug? or can I get away with back-probing the ground at the ECU? D1-D4? I appear to be getting a waveform at the ground but it doesn't look anything like an injector pulse should..
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2 years 1 month ago #55650 by VegasJAK
Replied by VegasJAK on topic Testing fuel injector with scope
Voltage testing would be to the control wire. Make sure you have a good ground.
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