Ok so it all started when I was changing my o2 sensor beacuse of a CEL me being me I decided to do it myself & ordered a 2 wire universal oxygen sensor I didn't know about it being 4 wires so I just thought you didnt need the extra 2 when I installed it, I drove it for a test and after 3min smoke came out of my dash and my engine died, when I turned it back on it quickly died again I checked under and white wire was fried ! It use to run & start up just fine before changing the o2 sensor checked the main relay & it doesnt seem to be fried even put my fog relay in its place to test it and engine still died is my DME fried ???? Any input appreciated thanks