The coil may certainly be a possiblilty. If you can get it to act up, put a spark tester on it to see what happens.
This may be a ground problem also. Try fabricating a new'jumper' ground harness to supplement the poor ground situation with this model of car. If high resistance is found in g105 and g106 circuits: both of these grounds are located at the thermostat housing. Both of these grounds are main eec grounds and as such are critical to eec performance.
Wednesday, October 17th, 2007 AT 8:30 PM