I own a Prelude 2.3 Si '92, and now in process of swap. For swap - JDM H23 VTEC engine from Accord SiR 1999. I got the ECU from the Accord, but I guess it's a wrong one. The full text printed on the ECU box reads: 2H 37820-PCF-N51 CY-EH2955A NO, 11250 -1 Matsushita Co. Questions: 1. Is it possible to use OBD1 P13 ECU with OBD2 engine H23 VTEC? 2. Is it possible to use OBD1 P14 ECU (my old one, non-VTEC) with OBD2 engine H23 VTEC? (I understand that VTEC will not work, but will the engine run at all?) 3. What is the code of my new ECU from Accord, is it CF? Please help! SOS!