I need help. T have a 94 explorer with 174k+ miles. for the pass two months I have had a problem with no solutions. Some times when starting from a stop there is no acceleration, applying more gas pedal doesn't improve the situation, then something will change and it will take off. This will happen with a cold or hot engine. Also will at times have a lack of power when crusing at 65mph. The engine light will come on randomly, sometimes when having the problem other times when no problem. Most of the time there are no codes when scaned.
We have replaced the O2 sensors, mass airflow sensor and DPFE sensor with no change. The fuel pump seems to put out a constant 28.
If anyone has some suggestions I would really appreciate them.