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Main Relay and EFI Fuse Question

Posted: Sun Aug 12, 2012 3:59 pm
by corollaman
Hey everyone,

So quick question, what would cause the Main Relay, the round top one in the engine bay fuse box to blow and cause the EFI fuse to also blow (and be really hot). I replaced the relay and the fuse, and havent had any issues so far. Could it have been just a bad relay or is there something I need to check out? I had an alarm removed as well as HID's removed.

Jonas, if you read this, the HID's and the alarm have been removed as well as that extra wire in that was next to the cluster in the front. Nothing has happened so far, but I also havent driven the car in a few days. Let me know. Thanks!

Re: Main Relay and EFI Fuse Question

Posted: Sun Aug 12, 2012 10:42 pm
by dr.occa
Hey Yaqub! The main relay and efi fuse heating up and blowing would lead me to think overload on the 12v source. Something like HID ballasts tapping into that circuit. The relay/wiring would heat up and blow and even melt the fuse.

Re: Main Relay and EFI Fuse Question

Posted: Mon Aug 13, 2012 4:58 pm
by bt20v
when the alarm and hids removed where the wires properly taped up? Could be a short somewhere in the harness