coffeeman690

just installed a motor and when it runs it surges and when I apply throttle it runs up and down. The car is rich and stinks. I replaced the upper intake with the old motor just to see if the sensors were bad on the used one, no difference. timing marks r dead one and compression is 180 but I only have 15HG vacuum?????????????? do i need to set timing again, or relearn the pcm.
Im very confused right now to where to start looking

Thanks

F22B Prelude

Did you intall an H23 or another motor? Where did you buy it from?

FallenAngelHIM

yeah what 2.3 liter did you put?
F23? H23?