So my comanche started missfiring really bad all over the board and running really rich. It has no power and going through gas like no other. All the grounds are cleaned and TPS are working as they should. So far the knock sensor has been replaced, the o2 sensor and the coolant temp sensor. Looked and found no vacumm leaks. Replaced the intake manifold gasket and still the same thing. Found a connecter to the CPS that was melted and just spliced in another and the o2 sensor wiring was all jacked up. Also the check engine light never came on through all this. Starting to think there might be a problem with the computer itself.
Its a 1988 4.0 auto 4x4.