Just scanning this 4Runner i picked up recently and seen these 2 connections just hanging. Is this normal? Could be why my CEL light is on perhaps?

Much Thanks

 

they should be connected. That will have turned on your check eng lite with a code 71. Connect it and pull the efi fuse to erase the code

 

The EGR gas temp sensor, that is.

 

I connected the 2 together, disconnected the - on the battery. Waited 10 minutes then connected - back. CEL is still on. Is there another type of wire i can use to check CEL manually other than a jump wire?

 

pull the efi fuse. The efi fuse erases the computers memory...if you pull the - battery cable I am pretty sure it won't have the same effect.

 

Is it the EFI 15A or the EFI black box?

 

Same as others had said. EGR temp. sensor. Drive for about 3 miles, after which it should go off. (after connection of course)

Are you sure that disconnecting the neg. terminal isn't the same as pulling the EFI fuse?

 

pulling the neg is the same as the efi fuse. Start the truck after doing this. Is you check eng still on steady? If so, you have another problem. The ege plug would be a code 71. Make sure nothing else is unplugged and recheck the code. There is no other way to check it other than jumping te1 to e1

 

Yeah, my CEL light is still on. Is there another wire i can use, since i dont have a jump wire? Would just regular speaker wire or something similar work? I read a safety pin. Do i just have the pin touch te1 and e1, leave it turn the key to ON, and watch the flashes?

 

Safety pin? That will never work. Use a paper clip or similar piece of STIFF wire..... the same diameter as a paper clip, though. Too small and it may wiggle around or come out. Too big and you'll distort the terminals.

Yes....just plug in the clip/wire, turn the key on, and count the number of times the CEL blinks.
http://www.off-road.com/toyota/tech/codes/index.html

Note: The only difference between disconnecting the battery and pulling the EFI fuse to clear the ECU hard codes is that pulling the battery cable will erase any stored electronics (i.e. stereo) memory, as well. The ECU diagnostic memory works on the same basic memory principal. All it requires is a temporary disconnect from it's power source to be erased. And, it only throws a code when there is a deviation in any one given circuit....either incorrect resistance/voltage signal or none altogether.