91 civic si with a b16a sir motor swap.

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Ryma

New Member
Iam wondering which harness from rywhire do I need to make an obd0 91 civic si a obdo b16. Do I need just the dizy harness? will I have to repin the ecu plug for the vtec ecu?
 
Ok I will email them, The descrip for the wire set I was looking at says.

This subharness will add wires for your VTEC Solenoid, VTEC Oil Pressure Switch, 2nd Oxygen Sensor and Knock Sensor to your 88-91 CRX HF/Si.
This is ideal for a b16a swap.

So if I plug the b16 ecu into the stock harness it will run?
 
It should run everything but VTEC if you have a Si..

You should need just that subharness, then you will have to wire it in at the ECU, but it's a piece of cake..

But I would let Rywire respond before buying it, they are the experts.
 
Heres the email I sent them.

-----------

I was looking at this wire set.

http://rywire.com/store/8891-hfsi-obd0-vtec-subharness-p-119.html?osCsid=98c674a2517b042e6fd9d42ea3d9e6f4

I was cureious as to if I was to use that for an obd0 b16 swap(in a 91
civic si) what other wire set will I need to run the b16 ecu on the
stock ecu harness?


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Heres what I got back

Nothing, that's all you need to add to your stock Si engine harness to
run the PR3 or PW0 ECU.
Keep in mind you do not install the OBD0 B16 engine harness in your car,
it's trash.

Does that sound right? do I still have to repin the ecu harness?
 
Is there a straight forward guide to change the pin outs?

I looked at the one on here and got lost.
 
Rywire should send you one if you buy the wiring.. If not..

Rywire - Online Store

Here is a pinout of the ECU incase the Rywire was difficult to see..

plugs.jpg


Thats how I wired mine.
 
i bought the obd0 to obd1 harness..i have a CEL on now but the toggle i wired to check trouble codes just makes the light go out..no flashing..wtf?
 
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