My '94 civic (D16Z6 esi hatch) has a fault code 43 (fuel pressure) which usually comes on at least once daily (usually when the engine is cold and under load, ie going up hill). The car is meticulously serviced and has had a recent fuel filter with flushes, etc. The fuel pump looks brand new (?) and the regulator seems to be working fine. The car drives perfectly apart from being restricted of power for a brief period when cold. I have even changed the tempeture sender incase it was giving the ecu an incorrect value! Any similar problems and/or solutions hugely appriciated.