ok i am lost this car ran and now it doesnt. it has the dpfi to mpfi conversion on the harness. i checked the wires a lot of times and everything seems fine. but there is a black with a red strip wire that has a shield wire connected to it. and the rest of the shield wire is wrapping three other wires all these wires are running from the fuel injectors . but at the end of the shield wire is not hooked to anything but it has some wire hanging out. could it have shorted out? and killed the ecu? or am i over looking anything? and like i said it ran and i drove it and it ran good . but ever since the old battery died and i put the new one in it wont start. It has spark and fuel. so i am lost any one have any ideas?