Tacoma shuts off while driving. Please help.

What do you mean no key? Like crank crank crank crank?

 

THE black/red wire is your ignition 1 wire, clip the wire that's spliced into it and cap it off or trace it down and disconnect everything. I'm almost 100% positive this is where your stalling issue is coming from now I have seen the quoted picture.

Edit: Actually now that I did a double take, your truck had a remote start at one time or one of those ignition killers for when your late on the payment so you can't drive the dam thing. (Yes those do exist)

Edit2: i just looked over my old notes from my remote start install on my truck, if your ignition 1 wire has a short in it one way or another the truck will shut off. Our trucks have 2 ignition wires.

Black/red ignition 1
Blue/yellow ignition 2
Both wires are positive in polarity

Edit3: I just saw the speaker Wire running under the dash. Does this truck happen to have a aftermarket amp and head unit? Reason I'm asking is because the wire tapped into the ignition 1 wire is about the size wire you'd use for a smaller 400w amp.

 

Yeah im pretty sure it had a remote start. The extra wire that was coming off the ignition wire powered the heated seats. No way thats from the factory.

 

That's a lot of current for ignition switch. Perhaps check voltage at ign circuit starting at fuse with key on.

 

Update just changed my efi fuse , wasnt blown, seems to be running a lot smoother.

 

Maybe change the c/opn relay as well?

 

Hasn't stalled yet. Ill drive it around today and keep everyone posted

 

Still no stall. I dont think its a permanent fix but its keeping it on the road for now.

 

Congrats!!! I didn't have anything constructive for you so I stayed away. Man what a mess you found. Hope you find a permanent fix!

 

Ok hasnt stalled yet and i can definitely tell its smoother between gears but still seems a little off when i come to a complete stop. Any ideas? And i really appreciate everyone input.

 

anybody know what that black frayed wire is going to the ecu?

 

Guessing it has something to do with a locker mod?

 

Don't know what the black wire is but I would rip the shit out!

 

That is a shield from a cable. Something like a coax cable

 

Doesn't look like a coaxial cable to me. Looks like a bare wire.

 

To me it looks like a coax shield with a piece of shrink tubing on it.

 

Looks F'ed up 2 me.

 

It looks ok to me. Doesn't look like it's burned up in the pic. That's what they usually do with shields. Is the insulation on it hard and brittle?

 

Doesn't matter what it looks like. Where does wire go? What terminal on plug?

 

As for the fuse, being an electrician, I've seen a fuse or 3 that look fine but open up with a load on it, then close after it has cooled.