I have 1995 2.7L Tacoma and every once in the while the EFI fuse will blow while I am driving it. I jumped the COR in the diagnosis port and I thought I had it fixed then it blew it again. I replaced the fuse and took the jumper out and it drove for awhile and blew it again. Does anybody have any ideas on what this could be? Suggestions? Thanks.

 

Bump.

 

Help!

 

Try replacing the EFI relay. On my 99, the power accessory relay is identical, so it can be used temporarily to troubleshoot.

 

check your wiring going to the o2 sensors. sometimes they will rub on the frame or lay on the exhaust causing an intermittent short

 

bump..

 

How about telling us what else you've done to track down the problem like checking for bare wires, loose grounds, etc. instead of just bumps and helps?