ECU fuse blows
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ECU fuse blows
Ive encountered a problem. My ecu fuse was blowing everytime i turned the car on into acc mode. I changed the battery terminals and wires, and now it can be driven for a few seconds before it blows the fuse. The only thing that I can think of is a dead ground. That there is a hot wire that keeps hitting a ground which causes a surge. If anyone has any other good ideas, let me know. Otherwise it seems like im gonna have to search through some wires. Thanks in advance
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Re: ECU fuse blows
Yeah, got the right fuse, what really threw me off is how the car started up fine with the new batt harness, but it still blows the fuse. And now with the new battery harness, I can just put a new fuse in and it will start. Before, if would blow the fuse at acc mode.
#7
Re: ECU fuse blows
Originally Posted by WillsH22Accord
anyone?
Also chk if the light get dim or brighter with rpms?
Whats i'm getting to is, to see if the IC in the alt. is bad, overcharging, will blow the fuse to protect the ECM.
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Re: ECU fuse blows
there are several things on the circuit for the ECU, but i have seen an O2 short out internally a few times causing a blown fuse. main thing is, you need to run a check on every circuit on that fuse.
what kind of vehicle?
what kind of vehicle?
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Re: ECU fuse blows
Its a honda accord with a H22A, You both could be right, about the alt. and the o2 sensor. Im throwing 2 engine codes, electic overload, and primary o2 sensor heater. The o2 is brand new but i had to rewire because of the harness, so it may be hooked up right, and i also have a wire thats spliced on my alt. But neither have had any trouble up until now. Thanks for the advice.
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