[La.Swamp Lobster]

Sounds like one of the knock sensors is bad...had to have mine replaced last week...was running rough as a leaf licker on a republicans hairy butt...and had very little power. The H2 has 2 of them, and they are located under the intake..but this should show a code when tested...but then again it could also be a cad. converter that is clogged up!