Y7 into 99 civic ex

[89guts]

i have a 99 civic ex with the sohc d16y8 vtec replaced by the non vtec d16y7 from a 98 civic dx still using the y8 tranny, harness, and p2p ecu
it is now throwing engine check light for vtec
what would i have to do to run this setup, clear ecl and pass smog?

 

[tabKola]

You would have to get a 99-00 P2E ecu and then move/add some wires for the IACV if your car is a 5-speed or you could swap on the head from a D16y8.

 

[89guts]

what would i need to do if i chose to replace the head and put back a y8 again
im guessing the timing and dizzy right? what else needs to be done?

 

[tabKola]

You literally just remove the Y7 head and intake manifold and swap over the Y8 head and intake manifold. Dizzys/timing is the same between the two. You will have to swap over the knock sensor from the Y8 as well.