Originally Posted by abw
i have a a ls integra and i want to know do i have to change out all the wire to change to a vtec engine its a obd1. do i have to change nothing but the egine wires or all including the wires beyound the fire wall
.... huh?
research "ls-vtec" it's been beat to death.
as best i could understand... you have an OBDII integra... and your wanting to vtecisize it.
your going to need a new ECU to match the engine... if the one you have is OBDI...then buy a conversion harness.
you will not have to change the engine harness whatsoever... but if your ECU has a knock sensor you need to have it bypassed.
that's about all i could understand of your questions