I'm new to the ecu thing as I've always owned newer vehicles I could piggy back with. Recently purchased a 90 accord for next to nothing that had a blown head gasket. F22a4 engine that has an eBay turbo kit on it. I've recently installed 550cc injectors new ARP studs (head). It is boosting around 11 psi n do not wish to go any further unless I buy rods bearings and pistons. After doing some research in order to run correctly I need a wideband 02 and a chipped ecu. I'm mostly computer literate and seem to understand how to use turboedit and/or crome. But I'm confused as to the best chippable ecu to purchase and run. So if someone could point me in the right direction I would appreciate it very much. It has a pt3 ecu I pulled out a little bit ago and did not see a socket anywhere or any signs it has been messed with. Is the pt3 chipable or even worth chipping. I know I need another sohc non vtec ecu from a civic just unsure of what ecu came in what vehicle. Thanks for your response.