hello i recently swapped in a 2004 gto engine into my 1991 240sx. for some reason i cannot get it to idle when its cold and it wont start up and hold idle without me giving it gas fora few seconds. when it finally idles on its on it smells rich.
i tried disconnecting the o2 sensors and no help. i tried disconnecting the iat and no help either. i have new plugs and wires and iacv.
i took the map from the ecu removed vats, unchecked a bunch of codes, and switched the output vss signal.
here is a log of me trying to start it 2 times wihtout giving it gas and then a 3rd attempt with me giving it gas.
stock 2004 gto.hpt
log 1.hpl