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Trigger point likely as high goes low, that is driven edge. Going high is by pull-up, slower and less precise. Lookin at windows in relation to crank timing may give clues. In my system one edge is base timing, the other is max advance. So, one window pulse may be base, other max advance...

Window makes high pulse. My best guess is keep window size same, don't shrink it, shrink metal part between. Shrink of window may lead to loss of pulse. There are 2 pulses per cylinder, roughly 45 degrees apart, less pulse widths. Similar to my system 45 degrees is used as advance reference...

I don't have direct experience with mopar trigger wheels and sensors. I do have experience with the application of Hall sensors with targets. I do ground up ECU designs, including reference sensing, but I make what I want, and code to go with it. In your case the code is likely fixed, so the...

Yes but, the fuel pressure should vary with manifold vacuum. It should be less at idle, and increase at WOT, if that is not happening something is wrong. A pinched return hose is an example. A 1 psi change that you suggested raised a red flag. Please ignore my invalid comments, see below...

Typically the fuel pressure varies with manifold pressure, that keeps the differential pressure at the injector constant, so the fuel delivery is always proportional to time of injector pulse width. Is the pressure reference hose connected and leak free to the fuel pressure regulator? Also is...