The CAS procedure where you spin it while its plugged and the ignition is in the ON position determines that injectors are firing. Check the TPS and make sure it is set right. The car is turning over correct? If it is and just not starting then it is possible you have bad injectors which could cause a rough idle or no starting at all. Since you also say you installed a new harness PLEASE double check that every last plug is plugged in right.
"Do you guys put the key in "balls down", or up?" -BobbyT 10:28:19 03/06/09