The GS400 started running poorly. It's got the old crane xri setup that came in my GSX. I installed my dwell meter but im only getting 12 degrees of dwell. But I'm not sure if what I'm doing is a valid test. The timing is on the money. I'd think if the dwell was thst far off the timing would be out to lunch but what do I know? Fast efi couldn't tell me. Lol
That's an odd one. I would guess the measure should be high (more than 30) if anything for "dwell" in an Electronic ignition? If it's really 12 maybe that's too brief or the coil to fully charge? I'm sure you'll figure it out...
I had problems with the FAST version of the XRi. Progressively got worse to the point where it would not start when hot. Ran fine when cold. Couldn't take it anymore and got sick of swapping coils and trouble shooting it, so I tossed it and put points back in the car triggering a MSD 6AL and Blaster 2 coil. Been great since!
I think the sensor is adjustable (pretty sure it's a lobe sensing unit) ...but other than that, there is nothing you can do.