Between a PR4 & a P74 or P75? Other then being obd0 & obd1. My LS is a 92 but im using a pr4 and I have a backup pr4 but im wondering if I should be running a P74 or P75. I been having issues with timing and found that 3 wires were scalped by the ECU cover on the footwell. They had to do with the distributor. Well components in it. I had just noticed that the P74 P75 is a 92-95 Integra. Thanx in advance.