my 02 intrigue has service light on and its running rough it says po306 code
P0306 is a misfire on Cylinder #6. Have all the spark plugs changed and see if the light goes out. If not, and you get the same code, replace the coil on Cylinder #6.
Change the spark plug wires as well. HTH. -Jim
Search Oldsmobile Intrigue Questions
Oldsmobile Intrigue Experts