Hey I have a 1994 Nissan coupe 2+0 NA 5spd and it starts but only for a second (unless I hold the key forwards then it'll keep waking itself up). Some things I realized are the "security" light constantly flashing except for when I have the A/C on and etc, the moment I turn the key more forward it'll start but die out right when the security light starts flashing again. I think the security light is what is causing my computer to not let me start??? Not sure, if anyone knows hot to fix this let me know.