Quote:
Originally Posted by Jonny H
If the problem persists after swapping plug wires, you might try making the second spark interval a bit longer on the CDI+ box, say 500 us (microseconds).
I’ve seen this occur a couple of times but typically on high compression and Turbo motors.
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Thanks, Jonny, for the input.
Indeed, the problem has persisted, much to my frustration. It was just running so well.... too good to be true lol. I don't suspect the spark interval as the issue cropped up mid-drive, everything was fine and then the miss started. I will def. add it to my list, however. Not sure you'll remember, but I'm running the PK black coil. I do have the original black coil as spare to try.
I was going to wait and probably should have, for my own sanity, but I cobbled together a good set of plug wires (mainly using the old SC wires). The car idles so nice and smooth now, it's great, but the miss persists.... and it's the hardest type to deal with, high load/high RPM only, and more than one cylinder (not like one broken valve spring thank goodness).
I did check fuel pressure (not delivery volume, yet, I hate playing with gas) but nothing else, yet, so it's premature to ask for any more input on what it might be.... BUT..... it sure does feel like weak spark. Quite a few variables, with all the messing I've done, I'll start in doing a systematic check tomorrow, starting with throwing a timing light on it.
Stay tuned......
