[ischmitz]

If it was me I'd get an LED test light, a NOID light, or better yet a low-cost oscilloscope for under 30$.

It will tell you if you get spark and fuel pulses from the DME (ECU) and if not can help diagnose bad flywheel sensors when both are absent. If only one or the other is missing just work down the path where you verify the DME signal is present, then check the components downstream:

no fuel: is there fuel pressure, is the injector stuck
no spark: is the coil good, is the the distributor working

As others said the 3.2 Motronic is relatively simple to troubleshoot once you understand the relation of components and there are many helpful articles.

Curious what you find