hi as you no i have a 93 f250 351 4x4. while driving my check engine light lights up for about 5-10 minutes and shuts off. i have no clue what it is and i cant get it tested without it being on. for the past week when ive been pressing on my gas theirs nothing there then all of the sudden my truck floors it. i dont know if this problem is the reason my light turns on. can you please tell me any type of solutions to these problems.

 

Check catalytic converter, maybe check alternator or fuel pump.