Replaced injector O-rings and glo plugs. had to buy dorman gasket wiring. It came with pig tail connectors to wire new connectors on (Had to re wire one, OEM connector was melted) In the front driver bank the wires were backwards, the front wire in the back and vise versa. Had truck running like that for a few minutes then found out problem because it sounded like it was missing, switched the wires and now it sounds like it idles better. however how bad would that have been for my injectors having the wires backwards or anything else for that matter? Thank you!