I need help finding the problem of my fuse that keeps blowing. I tried taking out the radio harness and yet the fuse still blows. I just recently rewired the ecu harness. I tried using a DMM on the radio and all connections are ok. My car is a. 1994 Acura Integra GSR

 

Is there any wire on the ecu harness that could set the back up 7.5 amp fuse to blow???

 

Check all of your grounds. I had a ground go bad the other day, blew my coil.

 

What ground should I start with?

 

The one closest to your radio is a great starting place. But electricity is a strange thing. It could be grounding out anywhere. I would start by taking a multimeter and tracing the circuit that keeps blowing.

 

What does your ecu harness have anything to do with your radio blowing fuses. There's only 2 wires providing the radio with power. One from the 7.5a backup fuse under the hood and another to the 10a fuse under the dash. Which fuse are you talking about?

Not sure if using a DMM on the radio connections matters if the person testing the connections doesn't know what they're doing...Food for thought. But nevertheless, GL tracking down your issue....Real or Not.

 

The back up fuse is what I'm talking about.

 

The problem is easily solved by replacing the whole harness. Considering you just tried to repair your ecu wiring and now you're car is blowing fuses, you probably made a mistake somewhere along the line. You could try bringing the car to a mechanic, but it'll probably cost you more than its worth to have them repair the problem.