KitCarlson, still fighting... Options

[McMark]

I'm still struggling to get my KitCarlson EMS running smoothly. It's a challenge when you're tuning FI and Ignition.

I read some threads on ShopTalk Forums where Jake recommends 12 degrees initial advance and 28 degrees full advance, all in at 3000 rpms.

So I dialed the ignition controls in to these figures. Checked the setting with a timing light and what's showing on the EMS monitor seems to match what's showing with the adjustable timing light. This is a wasted spark system and I've been ambiguously warned that a standard timing light "won't work" with a wasted spark system. This doesn't make sense to me though.

The first issue I need to deal with is that the car won't rev above 4000 rpms. When I first started setting this up I had the same issue and adding in advance cured the issue. I trust Jakes recommendation and so I'm looking for other sources of this issue.



Currently my logic tells me that if the system is too rich above 4000 rpms it would respond to more advance. Spark earlier gives the rich mixture more time to burn. I'll be playing around with this idea tomorrow, but I'd like to hear what'cha got to say.

[DNHunt]

Mark

Here's the timing map off of my MS injection. It is also wasted spark. I'm not sure what plug and gap you are using but I tried a bunch and ended up with the old standby Bosch W7CC and .028. The Ford EDIS system suggested platinum and a hugh gap but, that didn't work for me. I've read that there can be a problem with spark actually arcing allong the outside of the insulator if the gap is to big so check your boots for burn marks.

If it's too rich I would think your wideband O2 sensor would pick it up. Will it rev past 4G's with no load. If it doesn't, lean out that part of the table and see if it will. If that doesn't help I bet it's spark. Check to make sure the MAP sensor is working, I've left the vacuum line off before and it just won't rev. Either of the temp sensors not working and reading cold would give a rich mix but, you would see that throughout the whole fuel map.

Not much help I know.

Good luck

Dave