Does anyone know if there is a way to identify what year a 3.4 is and it's wiring harness.

I was told I purchased a 3.4 and wiring harness out of a 1997 Manual 4Runner but have sense found the wiring harness is not a Manual one and is an Automatic.

My problem is I can not find a FSM that matches my wiring harness. I've went through just about every FSM on techinfo.toyota.com

I've called a couple of Toyota Dealers and they all say there's no way to identify a motor or wiring harness. Is there not a VIN # on the motor somewhere?

I have everything finished for my 3.4 swap but the wiring, as soon as I figure out how to get past this I can drive my new beast.

 

there is a casting number, but unlike the cars, i dont think they rivet a VIN tag to the engine. You may be able to call the dealership with the harness part number, to find out what it is. Easy way to tell whether its auto or not is the plug for the NSS. Obviously MT vehicles wont have it, where AT trucks will.

 

Thanks. I'm 100% sure it's an Auto harness. I just need to figure out what year it came from.

 

3.4 MOTORS HAVE A VIN NUMBER PLATE ON THEM.

It's behind the timing cover and timing belt. I just started tearing the motor apart until I found it.