I have a 96 vtec civic had a bad engine so I swapped to a used one I found. It is a turbo engine. But I took it off and am running a stock ecu and fuel Injectors. The car will start but idle super low to the point it will shut off in a couple of seconds. I've moved the idle screw and advanced the distributor all the but it wont stay where it should. At one point it was running at 750 where I should be and then I shut it off and came back to test drive it and the idle was back to being super low. Sometimes the idle will surge from low idle to 1000. I've tested the map and tps.