Randysi

Im having a problem with my ef guys. here is some info. 90 civic hatch converted to mpfi obd1. D16a6 engine with 2400 miles on it. Brand new cap and rotor along with the rebuild. new ngk v power plugs recently. running a stock po6 ecu as of right now along. Well I put d15b7 obd1 injectors in it along with deleting the resistor box. Because I thought it might have been a bad injector. But no luck. the car runs awesome until it is warmed up. When ever I ease on the throttle it pulls hard(most of the time) and when ever I go full throttle it acts as if it weren't getting enough fuel and sometimes takes off in spurts. Now tonight for the first time I got code 43 (fuel system low fuel pressure/vacuum leak) But never got it after.

Also gas mileage sucked with the d16a6 injectors. Not sure yet with the newer ones in.