I bought a 1990 Honda CRX Si with a GSR motor dropped in already. Here is a quick run down of what I know is in the car itself: 1996 Short Block, 1994 Head, OBD0 PR3 ECU, and the rest pretty much stock. I know Im loosing power by running the PR3 and chipping the ECU is not an option. So I was thinking about running a complete OBD1 conversion. I know they have the harnesses already pre-made which is great for me, what Im confused about is, how my wiring is set-up already. Would you have to re-pin the stock Si wire harness to run the PR3 ECU? Because if that's the case, then I have to return the ECU pins back to factory so I can use the pre-made jumper harnesses. Will there be a problem with running the OBD1 head with the OBD2 block? Also, I would like to get the car BAR'ed and I cant find the VIN on the block, how do can I verify that the motor is clean and how do I get documentation to prove that the motor came with the car? And when I go to get the VIN verified will they check the actual year of the motor or can I get away with running the OBD1 conversion? I know its alot to ask, but I want to get my car legal and running strong. Thank you for all the help in advance.
