3.4 swap

Anyone have the ECU pin numbers and description of what its does I'm in the process of swap out a 3.0 to a 3.4 donor is a 98 4runner auto receiver is a 91 toyota truck manual 4x4 any help would be greatly apperciated

Thanks
Joe

 

Find an engine harness all the sensors and ECM for whatever year manual 3.4 you can find will make your job much easier.. The 4th plug for the ECM is on the cab harness. You do need that one as well.

Even the plugs were different between the different ECM`s till the Emission packages became all the same. Then just the pin outs are different.

The EWD`s of all vehicles involved make the job much easier.

Will the Truck need to pass Emissions and be street legal ??

The Automatic ECM can be used but it takes lots of work to get the MIL light shut off. Because of not having the Auto Trans .

The more research before the start the better the swap.

Good Luck,