I did some searching for wiring diagrams. I found one for a 2003 matrix, my 06 should be similar but not exactly the same.
Anyone want to read these and give me a none EE description?
What does the EFI fuse do?
If these do not help I have 20 other pdf to sort through.
Page 1
Page 2+3
4+5
6+7
8+9
Thanks!