GM LSx ECU ign output cct
- Circlotron
- Posts: 235
- Joined: Mon Apr 25, 2011 4:12 pm
- cars: VP 5L LPG
GM LSx ECU ign output cct
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?