as the title states, i have a 2000 turbo civic si that keeps blowing the 15amp ecu fuse underneath the hood. the car has been turbo for about 3 years now and the set-up has never been changed. i was wondering if anyone has had this problem before with there car and what was wrong with it. the first time it happened i just replaced the fuse and it worked fine for about a week and it did it again. when i replaced it the 2nd time everytime i put a different fuse in it would blow as soon as i tried to start the engine, but if i just turned on the key i can hear everything powering up(fuel pump realy, and fuel pump etc...) so any help is appreciated!

 

more than likely ....you have a GROUNDING ISSUE. One or more of your sensors is coming into contact with your car's chassis or ground/metal. Best thing to do is look around your motor for such things. Start out @ your O2 sensor...trust me on this one.