why waste time on changing/bagging sensors if the car has a wiring issue ??, any sensor replaced will get damaged sooner than later if the wiring is playing up especially when a car has had dfi and coil explode, and fingers crossed hopefully it didn't affect the power module.
Also the car history has had dodgy things chopped/altered before car was bought and losh has also fiddled with mutiple wiring issues and changes, thank god things are not worse.
It just might be time to bite the bullet and see a proper car sparky and get the issue diagnosed properly and fixed and pay $, surely it would be cheaper in the end, less stress, less flatbeds, less buying multiple sensors and less touching things that could make things worse.
Maybe it could be a simple EFI relay playing up as its incorporated with sensors like cas/tps etc, who knows, its a simple thing to check.
Also not having a dig at @losh just expressing some obvious thoughts especially when you come to a dead end and can't fix it yourself, its time to stop worrying and see a qualified sparky.
