Dizzy wiring RV8
Discussion
Tried this on the Wedge forum, but no takers.
Having a few probs with my wasted spark + MS setup, so I was going to give it a try with the old dizzy and coil setup. Unfortunately I foolishly removed the wires from the module, on the side of the dizzy, without marking where they went. Can anyone enlighten me?
Also the wire from this module that would have sent a signal to the ECU?? Any suggestions, as the ECU is now triggerd from the VR sensor on the crank pulley? Should I earth this wire or just leave it disconnected? It's white and black for your info.
Cheers in anticipation.
Having a few probs with my wasted spark + MS setup, so I was going to give it a try with the old dizzy and coil setup. Unfortunately I foolishly removed the wires from the module, on the side of the dizzy, without marking where they went. Can anyone enlighten me?
Also the wire from this module that would have sent a signal to the ECU?? Any suggestions, as the ECU is now triggerd from the VR sensor on the crank pulley? Should I earth this wire or just leave it disconnected? It's white and black for your info.
Cheers in anticipation.
What's the problem with the MS wasted spark?
The ECU trigger should be isolated if you aren't using it. It is electrically connected to the coil -ve so it is normally held at 12V via the coil but then pulled down to earth briefly via the ignition module to energize the coil. If you earthed it the coil would be permanently energized and would overheat very quickly, also you'd have no spark.
I assume you can connect the ignition module to the dizzy OK and it's the coil connections you're struggling with. As far as I remember, it's a 3-pin mini timer connector with the middle pin unused. The outer pins go to either side of the coil. It does matter which way round - how lucky do you feel? If you have the original connector then you should find that the coil -ve is connected to the ECU trigger and to the rev counter. On mine the rev counter is connected at the coil and the ECU is connected at the ignition amp - it doesn't make any difference in electrical terms since these two points are connected.
The ECU trigger should be isolated if you aren't using it. It is electrically connected to the coil -ve so it is normally held at 12V via the coil but then pulled down to earth briefly via the ignition module to energize the coil. If you earthed it the coil would be permanently energized and would overheat very quickly, also you'd have no spark.
I assume you can connect the ignition module to the dizzy OK and it's the coil connections you're struggling with. As far as I remember, it's a 3-pin mini timer connector with the middle pin unused. The outer pins go to either side of the coil. It does matter which way round - how lucky do you feel? If you have the original connector then you should find that the coil -ve is connected to the ECU trigger and to the rev counter. On mine the rev counter is connected at the coil and the ECU is connected at the ignition amp - it doesn't make any difference in electrical terms since these two points are connected.
Edited by GreenV8S on Sunday 14th September 14:05
I never managed to issolate a misfire on wasted spark and wanted to run the dizzy + coil again to see if it makes any difference.
The coil wiring is no probs, but I took the wires off the module on the side of the dizzy and forgot to mark them and there are no marks to suggest which way they would go on. There are only two terminals on this module.
I've actually sent the MS back to my supplier so that it can be converted to run EDIS 8. Hopefully back next week.
The coil wiring is no probs, but I took the wires off the module on the side of the dizzy and forgot to mark them and there are no marks to suggest which way they would go on. There are only two terminals on this module.
I've actually sent the MS back to my supplier so that it can be converted to run EDIS 8. Hopefully back next week.
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