On today's episode of "an idiot with a volt meter"
As per advice before putting new ECU in I started testing the pinout of the harness plug to see whether wires were compromised.
Went for easy ones with volt meter, ground and 12v.
As I was testing the 12v or the 5v I don't recall with one lead on input and other lead on engine ground I saw all dash go blank
I thought it might be a fluke and I triggered something. So I restarted. All lights back on, crank is fine, 15 seconds or so goes by and a relay or something under the dash by the fuse panel clicks and everything goes dark.
Thought it might be because ECU is disconnected. Plugged it back in and now the same result.
What relay or something else could be doing this? Is there a main relay on these?
I feel like this is head gasket all over again. Try to do the best I can and just make it worse..
Stay tuned to next episode when I get a power prope into my hands