hey i am a big ps fan and have several with very high miles but rescently i bought a 94 powerstroke with about 390000 kms.for the most part it runs well but it randomly dies on me.usely its just as i'm starting out at a light or just idling around. it always starts right back up and sometimes doesn't even completely die.the check engine light rarely comes on when it does it and if it does come on it's only on it doesn't stay on long enough to read and codes.i changed the cam position sensor and tried a diffrent injector drive modual and nothing made any diffrents.ive also shacken all the harnesses and plugs while it was running and nothing.any idea's?