Hei help!!!!
Let's clarify here
DO NOT PULL plug wires and leave them unhooked to expect to check anything, because when you pull a wire off, this creates a CROSSFIRE situation.
Do so like this:
If possible, do so at the cap, instead of the plugs. Loosen all 8 wires so you can get them on/ off easier, then use something like insulated fuse pullers.
Use a probe/ screwdriver with a clip lead to ground. AS YOU pull each wire off one at a time, "slip" your grounded probe to the cap connector with your other hand so the spark GROUNDS and does not crossfire.
Do this at a "nice" idle, and if inconclusive, try just a little higher idle speed. You are looking for each cylinder to cause the same drop in RPM as you remove them. No change in one or two cylinders, or a different change than the others indicates a problem with that cylinder.
Let's clarify here
DO NOT PULL plug wires and leave them unhooked to expect to check anything, because when you pull a wire off, this creates a CROSSFIRE situation.
Do so like this:
If possible, do so at the cap, instead of the plugs. Loosen all 8 wires so you can get them on/ off easier, then use something like insulated fuse pullers.
Use a probe/ screwdriver with a clip lead to ground. AS YOU pull each wire off one at a time, "slip" your grounded probe to the cap connector with your other hand so the spark GROUNDS and does not crossfire.
Do this at a "nice" idle, and if inconclusive, try just a little higher idle speed. You are looking for each cylinder to cause the same drop in RPM as you remove them. No change in one or two cylinders, or a different change than the others indicates a problem with that cylinder.
