I am at a lost. I have a 94 ranger with th 4.0 4x4 ext cab. Itll run perfect for a day or 5 then itll act up for a bit. Dotn matter weather it's hot or cold. Itll start to die, drop down to 2-400 rpms and sometimes just dies then. CEL will flash on and off, sometimes stays on. Tried Scanneing couple different times got no codes what so ever. Truck does have new fuel pump, tps, IAC, MAF, ETS, have tried a new ignition module. Also has new plugs and wires. It is charging, have also checked interia switch. Just runs way rough and then stalls, sounds likes it missing but when doing it still has great spark. Any help would be appercaited. I have read thru couple threads but nothing is working.

thanks logan

 

Welcome to the forum

If CEL stayed on then there are codes, if you can't read the codes then I would say computer is the problem

1994 used 3 code system
And codes can be read by counting CEL light flashes

Short video here on how to do that: youtube.com/watch?v=X07hu0kAuzE

 

Alright, I'll try that today. thanks