My car is 95 Neon Sports Sedan 4 door. By turning on all the electrical system on without starting the engine, no odor comes out. So it seems that's no problem with electrical system. And I smelt the odor from the emission. It's not from there, either. The last thing that I did was going under the car with starting the engine. I found some plastic stuff attached to the emission pipe. (I think the smell might be a burning plastic after I saw that, now I'm not sure what kind of smell it is) I tried to get rid of most of them but there were still some left that I couldn't remove. When I drove, I still smelt some odor but not as much as before. Would this smell be the plastic bag melting?
For the source of the smell, I'm pretty sure that it's not from under the hood because when I stop the car, the smell always comes from the back of the car. When I smelt the odor, I opened the hood immediately, but I couldn't smell any odor from inside the hood. But I don't know whether I need to go under the car to smell again. Do I? Thanks a lot.
I'm planning to drive a long distance by this car if this problem can be fixed. So any advice is greatly appreciated. Thanks a million.