I swapped my new d15b motor into my 91 CRX si. Most all of the wiring seems pretty self explanatory, but I had a few questions. The intake manifold seems quite different. My old manifold had eletrical 3 plugs going to it. One was towards the throttle body and I think its an air valve or something. The second plug goes to a canister towards the drivers side of the manifold, it looks like a pressure sensor or something, the wires going to this are blue and black I believe. The last plug has red and green wires coming from a white plug. My new manifold only has the white plug with green wires and the air valve plug towards the throttle body... My second question was regarding the vacuum lines coming from the map sensor on my firewall. There are two vacuum lines that used to plug into my intake manifold, but there are no plugs in the new manifold. Is this because the map sensor is relocated on the new engine? Finally, I had a question about o2 sensors. My engine came with a 1 wire o2 sensor. My wiring harness adapter supports a 4 wire o2 sensor. I've read that the P-08 ECU can use either a one or four wire o2 sensor... will this work? can I just splice the o2 sensor wire into the signal wire of the harness?
Thats it for now, but i'm sure ill have more questions so stay tuned
thanks
Thats it for now, but i'm sure ill have more questions so stay tuned
thanks