So you want to do a 3.4 swap. How do you get started? First, you’ll need a 5VZ-FE engine, wiring harness, and ECU. The best option is to get all 3 from the same vehicle, as this simplifies the swap. If you’re not able to get all 3 together, you can source an engine, find an ECU that will work with your swap, and purchase a wiring harness that will work with the ECU and the recipient vehicle’s options.
If the 5VZ ECU is from a vehicle with an automatic transmission and it’s going into a vehicle with a manual transmission, you may want to spoof the auto transmission solenoid signals to avoid your check engine light coming on. Check out our post on how to simulate the automatic transmission solenoids.
More information coming soon!