so pretty simple question i cant find the answer to. I let my friend who was building my engine take off my EGR i am on a USDM ecu:aigo:. What do i need to put it back on, or does an 89 N/A have an EGR and if so could i use it on an 87 Turbo. Any links to info on the EGR install or a reinstall would be helpful been searching foreverrrr and 3 letter words dont like to work. When does my motor run lean on this setup all i can find is part throttle boost