well first let me give you my setup to better help to diagnose the problem.
91 crx DX
sohc zc,mpfi conv,pm6 ecu, everything else pretty stock...i/h/e.
i did change the map sensor to pm6 but after 5-10 minutes of driving it throws a code 5 and itll go away after shuting it off and restarting the car. resetting the ecu doesnt do anything,still comes on afterwards. if the tps was off would that cause it or a slight leak around the throttle body? thanks guys