Picked up a 92 integra over the weekend, and it runs insanely rich, i get 70 miles off of 7 gallons. I checked the plugs, all fouled and covered in fuel. Whwn i start the car in the morning, it idles rough nd low, below 750. If i listen to the exhaust coming from the tail pipe, it has different sputtering sounds, like bogging, and its shooting out black smoke.
Ive changed the o2 sensor, changed the map sensor, changed the iacv, changed the ect sensor, changed the sensor on the thermostat, changed the thermostat, tried different plugs and wires, different cap on . I checked my mechanical timing and tension, and they seem ok, its at tdc pointer at bottom when the 2 cams line with each other, but my ignition timing is off, needs more advancement.
Im going to try different injectors today, if any one has had this problem and fixed it let me know what else to try.
Did you ever figure this out?