Driving it off the cliff

[ike84]

Originally Posted by Stl-986

Well, you can still owe me a beer, but I'll settle for doing a burbon run with you some time.

Pico is just an oscilloscope. But you do mention something that is worth thinking about. Instead of doing a pico scope I could just hook up my voltmeter.

Here is the question I have though. Coil has 3 wires going to it. ground, a voltage (not sure what voltage) and another wire. In coil ones case it is brown, black, green/black. Brown is obviously ground. But should the black wire have? voltage, ground, ?. What should the green/black wire have? The green/black wire is what comes from the dme. Dont know where the black wire really goes other then it's used by a lot of things. Injectors, all the coils, 02 sensors.

Who is our resident wiring diagram expert?

Not discounting this being a wiring issue. 2 common things with this issue for wiring. DME & bank 1 coils all use the same ground point. GP12.

The black wire goes back to vs 42, which is a connection point for power supply. My best guess is that it is the source of constantly supplied power to the coils (and radio, interestingly) and that the signal from the dme opens the circuit to allow voltage from that supply to activate the coil. So, it should be 12v steady on the black, where as the dme signal wore should be an intermittent (probably 5v) signal.

Dude, I LOVE whisky. Burboun is great, I'm more into ryes as I've gotten older though. There have been few moments in my life where I truly believed in god, and those have been (in no particular order) the birth of my children, the 3 miracles that happened on my wedding day, and the first time I ever tasted Thomas h handy rye whiskey.

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