I have a 1989 Honda crx with a DOHC D16a8 ZC swap. I recently converted the car to OBD1 using a tuned P75 ECU, with a TD43U distrubutor and of course 4 wire O2 sensor. Starts and runs well, the whole nine yards. I'm finding that my car runs hot at a load. I checked ignition timing and found 29-30 of timing at idle. Bypass jump on brown and green wire on timing connector and no change in timing. I tried this with 2 ECU's a stock one and a tuned one, tuned ecu was 29-30 stock was 34. I have checked the timing belt 3 times, balancer is not spun, #1 piston is at TDC and cam marks are at 3 & 9 oclock and lineup with the head. Anyone have any idea why the ignition timing is too high?