threehonda

I recently bought a rolled over 97 EX B16a, I checked to see what ecu it was running and it was hooked up to a p73. Since the tires are flat and the throttle is stuck open and there is no coolant in the block I do not know how well it runs. Eventually going to swap into my 99 Cx hatch, I was wondering is this car still ob2? Would it be drop right besides needing to wire vtec, or should I buy the jumper harness and convert to obd1 with a p30 ecu? Thanks.