i would like to know if or how hard it is to switch the wiring harness out of a ls to a gsr or type r or if theres a wa to get around tapping the wires into the pines for the ecu if any help please reply thank you adam

 

Making an LS harness to run VTEC is simple...You need 4 wires (20 gauge) for 1. Vtec oil pressure sensor (connect to B5) 2. Second O2 sensor (connect to C8) 3. Knock sensor (connect to B19) 4. Vtec solenoid (connect to A8). Let me know if you want me to explain further.

 

You also need to make sure that the Knock sensor and O2 sensor use shielded wire (braided strand around the main wire that is grounded to the chassis). If not, you will throw a code, especially with the Knock sensor because it is very sensitive to electrical interference.