EFI fuse problem

[deejayphilo]

Any idea why my car keep popping the EFI fuse. I thought I put the wrong ampere but nope I got the right one 15 amp...as soon as I put it pop right after I switch the ignition. Before it works when when I change the fuse but now it keep popping as soon as I change it and switch it on.

[TrailDust]

This is a common issue with Toyotas, and here's a past thread that discusses it. The EFI fuse often blows because there is a short to ground in the red/white wire that supplies power to the injectors and the O2 sensors as well as a lot of other components. Check the B+ terminal to see if it's shorted to ground. Disconnect the battery and use an ohm meter between the B+ terminal and body ground.

BTW, you may also want to do a Google search for "efi fuse blowing" and it'll turn up lots of information. Good luck!

[deejayphilo]

Yah i check the grounded i even added some grounds maybe it might help but still blowing fuses after fuses.

[Silent Runner]

+1 On the wiring harness for your fuel injectors. I've had it happen myself. It may start out just blowing the fuse randomly, but as the point it is occassionaly touching and shorting at gets more worn, at some point it will just weld itself closed. Could be happening anywhere on the harness or even inside it.

[deejayphilo]

I will remove the injector wires maybe splice the whole wire and get a new set from my spare camry engine here and see if it is the same....