2008 JK with P0300 code

[cpwolf]

So…my son sends a text that the 2008 JK is not running right.
Got a P0300 code and it limps it sounds like.

He also said “the muffler is hanging”

He’s 22 and an E4 101st, and I might strangle him.

Not sure how he lets the exhaust do that.

Any chance that can correlate?

I’m reading new plugs and coil….start there.

Any other thoughts?

 

[tJKrider]

He also said “the muffler is hanging”

Any chance that can correlate?

Depending how far forward the exhaust system is damaged, an O2 sensor could have been damaged (or wiring ripped out). That could also result in a misfire code.