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Re: GM TBI ECU #1228746 No Injector Pulse
Posted to Technical Discussion Forum on 12/29/2018 1 Reply

I looked through my old oscilloscope captures and actually found an old dref/ckp/est capture that I took way back in 2003. (I am old) The vertical sensitivity is unknown, but trigger is set above 4.5V, so the signals are definitely 5V.

[EST capture from unkno... Login to read more.

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