Wiring issue

[Kapwn3]

I have a 92 2.3 manual. My wires going to the coils and coolant temp sensor made id down to my exhaust manifold and shorted. My coils melted. Ive replaced the pig tails and coils. An still got nothing. Ive tested the wiring from the icm to the coils and have continuity. When i went to check for 12 volts on the red power wire my meter smoked. Its like it wants to turn over then back fires. Any ideas would be appreciated.

 

[Kapwn3]

I also had my icm tested. good

 

[Dirtman]

So when you say your meter smoked do you mean literally? And did you test with it plugged in or unplugged? Im sure you know the voltage into the coil is 12 volt but what comes out is many thousands of volts. So the only way the harness TO the coil could fry a voltmeter set to dc 20v scale is if you're reading coil OUT power. So something is still shorted or backwards.

 

[Kapwn3]

Yes literally. It was unplugged from the icm and vehicle on. It was on volts dc. Red going into the harness. Black to the negative battery terminal.

 

[Dirtman]

I ummm... no idea here. You sure your meter doesn't just suck? It's pretty much impossible to get enough voltage from that harness to hurt a meter because there is nothing inline to increase the volts without the coil. With the engine it's theoretically possible for a fried alternator to throw out higher volts and actually put out AC current but at that point you'd have burned up the fusible link.

 

[sheep herder]

Never let the magic smoke out of your wiring.