I have a 93 gs with a b18a1 ii was driving down the highway and it popped 3-5 times and died it will not start anymore. checked fuel pump main relay it also wont start if you push it https://snaptube.cam/ 9apps and drop it in neutral. it sounds like it wants to but just coughs and then backfires which could be because of the full exhaust system im not sure. please help completely lost at this point!!