Recently one of the mounting brackets to my exhaust came off while driving. Rather than welding on a new one i took out everything past the resonator. The truck started no problem but the next morning the truck turns over but refuses to start. I noticed a strong gas smell. Unsure if this is unburnt fuel that’s a result of a possible missing sensor or back pressure. The truck wasn’t terribly loud and I’d rather not go through all the work of reinstalling it. What do you guys think?