My 99 Galant shuts off sometimes when i start accelerating. on 1999 Mitsubishi Galant

The engine fuse blows and when i change it, the car runs again for a while and then it happens again. I had the ECM fixed and it still happens. What could cause this??

Asked by for the 1999 Mitsubishi Galant
Your problem is likely in the wiring harness. The fuse panel itself could also be a problem.
Thank you for answering! I had the wiring harness replaced already also the 02 sensor, alternator, radiator etc. The just shuts off and the engine control fuse blows (20a). If the fuse is changed, the car runs fine for a while and does the same thing. Do you think it can have anything to do with the downstream O2 sensor or even the alternator fuse? Plz help. Also, i noticed you all arent too far from where i am, if i bring the car in, would you all be able to diagnose and fix the problem?
It will be our pleasure to diagnose & repair the problem