96 Cobra. Had a slight miss so decided I would change the plugs on the weekend as it wasn't anything that appeared major and was only noticeable upon quick acceleration. Before the weekend arrived the slight miss became more evident by a very noticeable shake at idle and an unburnt fuel smell in the car.
Replaced the plugs with motorcraft plugs. There was noticeable improvement but still a miss, a shake, and fuel smell. Checked the coil packs with an ohm reader and all checked out okay. Took it to a friends house that has a nice snap on scanner. No CEL codes and no evidence showing of a misfire from the scanner in live read mode. He also had some spare coil packs that were the same as mine and so I tried those since they were there but no change. It was late so I called it a day.
Today pulled the wires and checked resistance and all seemed ok. Varying very slightly from one wire to another. Started car and began pulling each wire off of the coil pack to check for a noteable change in idle. Found one that did not make a change in idle as all the other 7 did. Wire tests fine with meter though... 8.78 ... a little over a foot long wire. Seems that the wire is bad but test fine with the meter. Thoughts??? Trying not to just throw money at it without reason.
Replaced the plugs with motorcraft plugs. There was noticeable improvement but still a miss, a shake, and fuel smell. Checked the coil packs with an ohm reader and all checked out okay. Took it to a friends house that has a nice snap on scanner. No CEL codes and no evidence showing of a misfire from the scanner in live read mode. He also had some spare coil packs that were the same as mine and so I tried those since they were there but no change. It was late so I called it a day.
Today pulled the wires and checked resistance and all seemed ok. Varying very slightly from one wire to another. Started car and began pulling each wire off of the coil pack to check for a noteable change in idle. Found one that did not make a change in idle as all the other 7 did. Wire tests fine with meter though... 8.78 ... a little over a foot long wire. Seems that the wire is bad but test fine with the meter. Thoughts??? Trying not to just throw money at it without reason.