Honda/Acura Service Manuals at ManualsLib.com They offer free downloads of the factory service manuals. There is no catch, totally free, but if you find one that you like please purchase it if possible. Most of these manuals can be bought directly from the publisher at HelmsInc.com
This is an Excel spreadsheet file that extensive info on the wiring changes needed to do the 96’-98’ JDM OBD2A D15B 3-Stage VTEC (a.k.a. Dual VTEC) swap into a USDM 90’-91’ Civic Hatch base model dual throttle body injected D15B1 engine. However, the file has enough wiring and connector pinout info related to the JDM P2J-003 ECU (manual transmission ECU) and engine wiring harness to help with swapping the 3-Stage VTEC D15B into other chassis cars as well. Click here to download the file.
More to come soon
We’ll be adding more to this list of downloads in the future. Thanks :)