FliiBoii

i currently have a 95 Gsr motor in my 99 si but my ecu wouldnt throw emissions when i went for the inspection. idk what ecu i have but do i need a obd1 p72?
Does anyone know where i could find this & also, do the 96-00 obd2 gsr motors run faster than the 94-95 obd1's?
(idk if i should do a swap to the newer gens)

grumblemarc

iTrader: (4)

What do you mean it wouldn't throw emissions? How do you not know what ECU you have?

B18C5-EH2

What ECU do you have?

Do you have a jumper harness?

We cannot begin to answer any Qs until you tell u more info.

grumblemarc

iTrader: (4)

I see. He started a new thread instead of responding to the original.
https://honda-tech.com/forums/honda-civic-del-sol-1992-2000-1/99-si-b18c1-swap-wont-communicate-scanner-emissions-test-2998706/

Wrona

that_boy_sammy

First you need an obd2 gsr ecu. Second you're going to have to fix the check engine codes. You're pretty much converting from obd1 to obd2.