Hey guys! Im new here and new some serious help!
The other day i was driving and the car infront of me dropped a big plastic bag an wen right under my car and got stuck on my catalyctic converter anr my exhaust. I pulled over and took it off, but there was an still is a melted bag and smell of plastic left behind.

It ran fine then all of a sudden i got symptoms of a bad MAF sensor (rough idle, stalling) etc until the car stalled and wouldnt start anymore. I unplugged the MAF sensor and the car started and i drove.

I purchased a new MAF, car started up smooth but it only lasted a day and all the problems returned!

Now i am thinking it could be an sensor? Or something else? Any ideas? Please!