So, this isn't the first time this has happened to me. It killed the first ecu in the car, and I'm assuming it's working on the 2nd.

I hear a crackling noise from my ecu. I was 90% positive it was in relation to my OMP because on my last ECU I smelled electrical burn, my car went into limp mode, and my OMP and ECU both were dead. So I replaced both.

Well, everything was fine, and then the crackling from the ECU started again. I regrounded all the grounds, looks as well as I could for any shorts, but I just don't know where it would be shorting at.

Has anyone else ever had this issue? Or how do you all think I should fix it? Just run new wires to the OMP and hope that fixes it?

 

Disconnect the leads at both ends (ECU and OMP). Use a voltmeter to check and see if there is voltage present on any wire with the ignition on (short to a hot circuit.) If none, use an ohmmeter to check each wire for resistance to ground, and to the others. It should be infinity. If it is not, there is a short. You can trace it down, or just snip the leads at each end and run new wires.