Best M5 Ever Made!
So I replaced the CCV today and oil filter housing gasket and all of a sudden the car would not start I put new plugs in as well we pulled plugs and verified spark also verified fuel could not figure out why it would not start. We messed with all the wiring again down to the idle control valve if for some reason the car began to start but was then miss firing on cylinders three and for those cylinders continue to misfire even with swapping coils. At one point noticed small smoke coming from ECU box so I took the cover off and it smells like burnt electrical but I don't see anything in there burnt. am I ****ed is it possible the electrical connection to cylinders three and four gotten melted inside the ECU somehow? So pissed off no idea how this could've happened worst day ever we did have two of the electrical connections from that box switched the one that goes to the little eve app valve in the one to the oil filter housing I believe were swamped so we fix them I'm wondering if that caused some electrical problem somewhere?