What could be wrong with a 1999 Dodge Neon that misfires when put in gear and has a very bad fuel smell inside the car and registers fault codes 27 43?

Answer 1

Well, a code 43 is telling you that you have multiple misfires. The code 27 is a problem with your fuel injectors. Given this and the fact that you smell gas, I would suspect a gas leak at the fuel rail or in the line. Interrupted fuel supply would certianly cause a misfire.