Is this sensor the Knock Sensor? Refer to picture below.
Has the distributor been removed from the engine?
No the ditributer has never been removed. The image that you sent me is different than the motor i have. I beleive the knock sensor is typical located on the LH head right?and i have a two wire sensor in that spot between the back two plugs, I do have a two wire sensor in the same loction as the knock sensor in your image but there is a bolt threw the center of it and the connection is pointing towards the center of the van. Also the oil fill tube is in the LH valve cover not the RH like in your picture.
That sounds like it would do the trick. One final question I got I just drove the van with the dog house off and intermitantly under a load a slow speeds like leaving a stop sign the coil wire was arking to the block would that have a factor in this problem?