Yesterday my GP started bogging down to about 500 rpm sitting at a stop light, and the service engine soon light came on. I put it in neutral and gave a little gas to bring it up to a normal idol where it wasn't acting like it was going to die. Noticed after I turned the radio down that there was a knocking noise different than the normal knock that I have had since 03. We replaced the spark plugs and the wires and it still does it. It showed that the #2 was misfiring. Does anyone have any ideas on how to fix her.
