I'm running out of ideas, and need help. 1994 Ranger, engine from 1997 EFI 5.0 explorer, remote turbo@5psi.
I've got a miss, or stutter, while cruising at highway speeds (at least thats where it is most noticeable, probably could be there at slow speeds too). Doesn't happen when you get on it, or let off it, just while maintaining.
Another symptom that happens is my air/fuel ratio no longer kicks down (gets richer) when you get on it and push into boost, it just continue to bounce around that 14.5-15.2 or so (used to kick down to 11.5-12 when you got into the boost).
So far I changed fuel pump, changed plugs and found a cracked rubber EGR hose, neither of which has changed anything. Anybody got a direction to point me in? I'm apparently in over my head.
I've got a miss, or stutter, while cruising at highway speeds (at least thats where it is most noticeable, probably could be there at slow speeds too). Doesn't happen when you get on it, or let off it, just while maintaining.
Another symptom that happens is my air/fuel ratio no longer kicks down (gets richer) when you get on it and push into boost, it just continue to bounce around that 14.5-15.2 or so (used to kick down to 11.5-12 when you got into the boost).
So far I changed fuel pump, changed plugs and found a cracked rubber EGR hose, neither of which has changed anything. Anybody got a direction to point me in? I'm apparently in over my head.
Last edited:
