d16y7 to d16y8

[skizzot]

Ok, i search the forum but didnt find anyone in my same situation. I have a 1996 Civic LX - which stock has a d16y7. It no longer runs. I am going to put a d16y8 in it. So im replacing the entire thing. I was wondering if this would be different then a mini me swap. I know i need a ECU from a EX, and the wireing for the Vtec. Except for that , what else should i need?

thanks.

[skizzot]

anyone?

[sql_civic]

You'll need to wire in the knock sensor.
You'll be going from a 3-wire IACV to a 2-wire so you'll have to cut the connector, wire that in and disconnect the extra wire where it connects to the ECU.

Or you can just get a Y8 wiring harness and re-wire your secondary O2 sensor.

[wazup]

how do you rewire the secondary ecu?

[sql_civic]

I'll have to look up what I did and it's too late tonight.

But basically there are 4 wires to the sensor and I believe they were something like:

1) +12v
2) Ground
3) sensor to the ECU
4) sensor to the ECU

I'll get the specifiecs tomorrow. Sorry.

[firetech_96]

If you are replacing the complete engine (intake to oil pan) you will need the engine harness (or do some splicing) and the correct ECU.

1996-98 OBD2a = P2P ECU

[sql_civic]

Here's how to wire in the 2nd O2 sensor

Sensor plug
Pin 1 (WHT/RED) -> Pin 14 ECU plug D
Pin 2 (GRN/WHT) -> Pin 5 ECU plug A
Pin 3 (BLK/WHT) -> Pin 13 ECU plug D
Pin 4 (BLK/WHT) -> +12v (I used the BLK/YEL wire intended for the EVAP cannister vent shut valve which the EX has and my DX doesn't.)