this may or may not be in the right forum. if it is not i'm sorry. i have a 91 crx si w/ a 1gen b16a. i want to know if i have the right ecu. i did not do the swap so i don't know if the guy used the right ecu. i think the one that is in there is a pm6. what is this ecu from? is this the stock crx si ecu or is it a z6 ecu? i don't think it is the stock b16a ecu, but i am not sure. also the vtec is not hooked up. will i need another ecu to hook it up? if i need another ecu which one do i get? also how do you identify which tranny you have? i looked at it and there was a small gold tag on it that had this on it YT-1014051. also on top of the tranny right below the vtec sol. the letters LSD are stamped into it. does this mean it is limited slip differential?