Yep, and it had bugged me for a couple months now: I'd try to start my 89 XJ with the (numerous expletives considered but not said) Renix MFI and it would crank fine but no start.
Always before it would start up after I'd (A) moved the vehicle out of a parking stall in case I needed a tow/jump, (B) slammed the hood ( I have a liftgate cylinder helping prop it open and for lifting it), or (C) slammed the door.
And I was always in a moderately high noise area, i.e. parking lots.
But this last Tuesday, it happened in my driveway in a nice quiet area of town.
And I noticed there was no fuel pump noises.
Pump has less that 10,000 miles on it, btw.
So I bled the rail and no noise.
Fuses were all ok so I suspected the pump relay as I had some spare relays from a 92 XJ I'd scrapped out. Popped in a relay with less than 300K miles on it and now it starts faster and the pump sounds healthier and a random idle rpm miss I had has dissapeared..
So ... if your Renix MFI system acts weird with no starts and there is no pump noise, I suggest carrying a spare relay or two.