No, I just don't understand why you would start out by guessing the most expensive parts rather than attempting to actually find the problem. Bear in mind I've done that myself WHEN I had the parts lying around. So you don't need to get your panties all bunched up.
Ya know recently we had a member.........the green field wire was shorted to ground in the harness. Imagine that!!! .25 worth of wire caused a problem that could have been a regulator or bad alternator!!
As I pointed out, as simple as the ECU ungrounded. That has happened here on this very board more than once, just a simple problem with rust/ loose bolts or the OP had not thought it needed mounted to test it.
The other problem with "throwing parts at a problem" is what if YOU DO HAVE a wiring problem? Let's say EG the connector for the distributor is broken inside.........You could change every part in the ignition...........several times.......and the thing would never run...........
