GM LSx ECU ign output cct

They go by many names, P01, P59, VPW, '0411 etc. Also covering E38 and newer here.
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Circlotron
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Joined: Mon Apr 25, 2011 4:12 pm
cars: VP 5L LPG

GM LSx ECU ign output cct

Post by Circlotron »

Hi. What I am looking for is a partial schematic of a GM LS and newer ECU that shows the circuitry inside the ECU that drives the ignition coils. Specifically the little transistor and maybe collector pullup resistor and whatever else that gives the 0-5V output signal to the wiring loom that goes off to the ignition coils. I want to build an ECU simulator that gives the exact pulse output that a real ECU would, as far as voltage levels and drive capability is concerned. Just simply using a sig gen is not what I want. Any ideas?
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