Welcome to our Technical Information section. Here you can find technical articles, installation documents, and some frequently asked questions. Use the buttons below or the links in the sidebar to view articles for certain categories. Feed your brain with knowledge!
Standalone Wiring Harness Installation Instructions 3.4L 5VZ-FE and 2.7L 3RZ-FE applications *****NOTICE TO CUSTOMER: If there is a problem suspected with the wiring harness, call ORS. DO NOT cut, alter, or dissect the ORS conversion harness. ORS accepts no responsibility for a harness that has been tampered with. Please read all instructions before beginning work. […]
Install Instructions Conversion Wiring Harness, 85-95 22R-E and 3VZ-E applications 3.4L 5VZ-FE & 2.7L 3RZ-FE Engines *****NOTICE TO CUSTOMER: If there is a problem suspected with the wiring harness, call ORS. DO NOT cut, alter, or dissect the ORS conversion harness. ORS accepts no responsibility for a harness that has been tampered with. If wire […]
Installation Notes Install one adapter into the steering gear or the ABS actuator (if equipped). If using the ABS actuator, the provided gasket is installed between the adapter and the ABS actuator as a seal. If installing the adapter into the steering gear, be sure the gold-colored compression fitting is in place, inside the steering […]
Installation notes For 3VZ-E and 22R-E models Note: The original 22R-E or 3.0L fuel pump (in-tank) normally works well with the 3.4l engine and can be left in place. However, if a supercharger is used, ORS recommends upgrading to a performance fuel pump. Also, be sure to purge fuel hose w/ compressed air before installation. […]
’86-’95 4X4 & 4Runner Frame W/UCA Mounts ORS-EC073 Installation notes This kit should include the following: 2x Frame plate, large 2x Frame plate, small 2x Tab, longer 2x Tab, shorter NOTICE TO CUSTOMER: The final fit of the engine is the sole responsibility of the installer. The installer is responsible for test fitting the engine […]
Installation notes This tray is delivered un-painted and is constructed of mild steel. We recommend painting this tray prior to installation. Remove the air intake box, washer bottle, and any other restrictions in LH front corner of the engine bay. Set the ORS Battery Relocation Tray in this corner. Using the washer bottle (will be […]
[toggler title=”What parts are required in addition to the ORS harness to complete an EFI swap?”] A required parts list in included with our instructions: 85-88 P/U & 85-89 4Runner EFI 89-95 P/U & 90-95 4Runner EFI [/toggler] [toggler title=”What information is needed to order an ORS EFI Conversion Harness?”] Donor (22R-E) vehicle: VIN#, Year […]
[toggler title=”Why is ORS’s kit better than the competition?”] Our competition does not include new wheel bearings in their manual hub conversion kits. Contrary to what is said, these bearings are NOT re-useable and must be replaced for safety when doing this swap. Our kits also come with the large snap rings that retain the […]
[toggler title=”Does it matter if the donor parts are all from the same vehicle?”] Yes, we recommend that all donor 3.4L parts are from one vehicle. Toyota made many small changes from model to model and year to year. Matching an ECU, engine harness and related sensors from different vehicles is possible but can be […]
