Mitsubishi Repair Problems? Ask a Mechanic for Answers ASAP
This is the under-hood 20A #9 fuse that is blowing?
The fuse is blowing specifically at key-on, and you don't have to crank the engine for it to blow, is that correct?
Thanks.We are going to want to unplug a few more devices and check for the fuse blowing.Please unplug the crank sensor (follow the wire up the center/front of the engine), the cam sensor (rear of the heads) and the MAF sensor (on the air box/intake hose). Cycle the key and see if the fuse still blows.If it does not, reconnect one at a time until it does indicating the short; if it does not then...
Unplug the front and rear O2 sensors (rear sensors connectors are right under/behind the throttle body area), the throttle body, the MiVEC solenoids (ends of the heads), and all vacuum solenoids. Cycle the key again and see if it blows.
Let me know what you find in those two steps, if it still blows we will dig deeper (moving beyond those we get into more invasive checks but luckily it is usually one of the ones above).
Were we able to narrow this down any further?
I'm sorry you had difficulty with the site, that isn't how it is supposed to work. I will send this to customer service for you for a refund.
You're welcome; I'm sorry for the delay, I had to wait for customer service to finish before we can re-access the question. Hopefully everything got straightened out in that respect and the extra charges or whatever was going on.
With your issue... that's great news. Have you had a chance to repair the wiring and confirm no return issue? Were you able to identify what the duty of the wires were that failed (to determine if there is possibly a high load issue on that circuit etc)?
Well for now the best you can do is keep an eye on it... it is possible something is chaffing and grounding out if the melted area is concentrated. If it is a long stretch (several inches of melted wiring) then a component failure is more likely. When you have wiring chaffing to ground it is usually rather focused (less than 2 inches or so of damage). If it is rather focused like that what you can do it run the engine and apply pressure to various locations of the wiring very nearby the damage area. If you can pop the fuse, you know there is a chaff area there where the affected wiring is getting unwanted grounding.
Hmm... if it was a ground then there is definitely something else in play. The ground wires are post-load, so there is no way they can do that on their own. They have to have some sort of contact with a power wire really.