hey everyone. im getting ready to order my "demon" from neptune, and i have a few questions that i hope i can get help with before i do.

1: they give the option of p28 and p72 obd1 ecus or what i assume are generic ecus that are obd1 labled vtec and nonvtec, my question-is there a difference between them besides the number ecu? (going nonvtec btw)

2:i have a 99 civic dx, but my intake is a 99 ex's manifold(automatic). am i going to have to get the manual intake manifold? i have read somewhere(dont hold me to this) that you can just de pin a wire from the 3 wire iacv connectors and run it like that. true or false?

any help will be greatly appreciated. thank you in advance.

 

p72 will have a knock board.

you're gonna have to either get a manual intake manifold or drill out the holes for the iacv.

 

1. Who is "They"? P28 and P72 are both VTEC. Most places will sell non-VTEC ECUs as well. You can run non-VTEC setups with a VTEC ECU, so if you're planning to make that change in the future you may want to get the ECU now.

2. There's a lot of info online about swapping to a 2-wire IACV. I'm not sure anyone has modified their 3-wire to work.