Here is a link for a detailed pinout for a p28 ecu mainly used for ls/vtec with the pinouts that are used to run the vtec wires...i have a ls/vtec and i noted that a lot of ppl on here are going for it and i havent really seen a decent thread on this so i thoguht it would be helpful, here you go.....http://www.ff-squad.com/technet/wiring.obd1.htm