That is a cylinder 1 misfire. Check compression in that cylinder, check coil. If you already replaced the plugs, check to make sure it is getting a good hot blue snapping spark to that cylinder and make sure the injector is getting power.
November, 22, 2011 AT 5:45 PM
Just to add to this one I have seen some of the newer ions have low compression on a cylinder causing a dead hole. Also as far as checking the injector circuit best to use a noid light it shoukd flash while cranking and not stay on solid.
November, 22, 2011 AT 5:52 PM
That is what I was thinking too, Saturntech. Thanks for the input.