Originally Posted by Mudpie
Checked for spark, with new plugs. Pulled #1 since it was easiest to get to. There was a spark arcing between #1 and #5 on the coil pack. Pulled the #5 wire off the coil pack and the arcing stopped, but I never got a spark at #1.


Sounds like waste spark system, spark to two plugs whether they need it or not. I don't understand what/why you got, but research waste spark.

Did you actually ground the plug with wire attached to see spark?


92 Montero LS 3.0L V6 Auto, Stock, Original owner, 185,800K miles