My engine has gremlins (read below)

[superj]

You think so aince it works when the mag is unplugged? You dont think maybe the maf is nad out of the box?


You need someone with a similar ranger so you can test swap stuff

 

[tommo77]

You think so aince it works when the mag is unplugged? You dont think maybe the maf is nad out of the box?


You need someone with a similar ranger so you can test swap stuff

This is the second maf we have tried first was aftermarket and I believe this one is motor craft? OEM?
The reason I think it's the PCM is from my reading once the maf signal is lost it uses the O2 sensors and rpm to map fuel input.
Since the O2 fault and the misfire goes away when the maf is unplugged I'm guessing the maf signal to the PCM is causing an issue in the PCM itself.
This is my first Ford since my 89 Thunderbird back in highschool (1996) so I'm doing the best I can with the info I can find.

 

[rubydist]

Its possible, but in my experience more likely that the mafs is bad.