I'm depressed, 2 hours of dyno time for nut'n....., Ignition cr@pped out, wouldn't restart:( Options

[Mueller]

What a waste of a day off.... (IMG:http://www.914world.com/bbs2/html/emoticons/headbang.gif)

I knew it was going to be one of those days when my laptop wouldn't communicate with the Link ECU, luckly I brought a back up unit that I normally use, it's just that the 1st laptop I had was way, way faster...(normally)

Mark D (McMark) showed up and helped stomp on the gas while I played with the laptop, we started @ 1000rpm and went up in 500rpm increments...strange feeling with the pedal @ WOT in 4th gear and the motor would not go over the set load...

I kept hearing a misfire and then all of a sudden under load it got real bad, we changed out the distributor cap since the original one had some viewing holes cut into it for timing....it just got worse...then I noticed the air intake elbow was a little loose so I fixed that...I was hopeing that was it...nope still really bad misfires coming out of the exhaust....finally I load a new MAP setting and the car seemed to be idling better, then all of a sudden the car dies..."hey Mark, did you turn it off???"

"nope"

"oh $hit"

I get out the voltmeter, I have voltage like I should, no apperant spark....

So, it's one of the following I think (IMG:http://www.914world.com/bbs2/html/emoticons/wacko.gif)
a bad MSD box, a bad optical sensor in the dizzy or the Link is messed up....I have a check list of items to go over before sending the Link back for testing....

I think i want to replace the optical sensor within the dizzy with a hall effect unit, any leads or ideas?

McMark dyno's his car, I'll let him tell you about it...he had better luck than me