cis to megasquirt

[GTIspirit]

Greg - the A2 cars had a running change to digifant electronic injection in 1987 or 88. It is a legal spec line change to update CIS and CIS-E A2s to electronic hardware and use a megasquirt.

I guess that's only for 8V engines?

What about the position acquisition? It's not allowed to install "crank triggers" on engines not so equipped, and I'd be certain that digifant didn't use a toothed crank wheel...... So I think your best solution then would be something like a 12 or 24 tooth wheel on the camshaft, with a gap to determine TDC. It's described on the MegaSquirt forums,
http://msextra.com/doc/ms3/trigger-wheel.html
http://www.msextra.com/forums/viewto...?f=101&t=41909
I was reading through this exact thing the other week. "Missing tooth cam wheel" was what I was thinking of..... Of course while not as good as a crank wheel, a 24 tooth camshaft wheel would provide more angular resolution than the stock four bladed vane sensor, and Megasquirt would allow better tuning of the injection map for improved power under the curve.

BTW, anyone know if coil on plug is "allowed" or not for IT? I was wondering if some of the later model VW coil on plug modules could fit earlier engines? Might be a good option to simplifying some complexity going to a MS setup.