alright i have been jumping around civic forums...cant really find anything to help me out...I have a 96 civic originally a d16y7 or 8 car with vtec ..... long story short...someone swapped in a d16z6 and its running on whatever ecu was stock odb2...cars got the check engine light and all....runs fine....but i have a p28 ecu and the car has some mods and soon more and i would like to get it tuned...i tried however hooking up the p28 and the car will not start with it...why would the d16z6 with the jumper not make the car run?