I need someone with some good 4.3 knowledge. I asked this over at a blazer forum, not ONE response

So my question:
I am swapping a 97 4.3 cpi vortec into my 4runner, im using the stock yota tranny, so the only problem i think i would run into with this is that im not going to have the vehicle speed sensor that is on the chevy tranny.

I just need to know if the motor will run right with out any input from the vss to the vcm(vehicle control module).
I have read about them going bad, and the problems range from wacked out speedos, to almost no power.

If it wont work i will just have to figure out a way to fool the computer.

hopefully you guys are more helpful than those blazer forum DBs.

Thanks guys

-Jack

 

check advance adapters for the part I believe downey toyota had one that went in line before the speedo cable, but they are gone now maybe advance has the part now

 

You'll get a check engine light, the ECM will never go into "closed loop" mode, and the emissions controls (EGR) won't function. It'll probably run okay, though.

Jags that Run has a lot of parts and resources for VSS conversions:

http://www.jagsthatrun.com


You probably have an electronic sender on the Toyota transmission. Feeding the GM computer from that signal will be interesting. I have the opposite problem on my truck. I'm going to have to drive the Toyota electronic speedometer from a Chevy VSS.

 

Exactly what i was looking for. Thanks a bunch man.
That is a good link too.

And i have thought about using the vss signal from the r150f im swapping in, i might have to try it just to see if it will work