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Discussion Starter · #1 ·
I'm replacing the B16a1 in my '90 SI. I picked up a B16a2 but am not going to change over to OBD1. I'm trying to confirm what I need to swap out to make this work.

Use my:
OBD0 engine harness
OBD0 distributor
OBD0 injectors
B16a1 thermostat housing

I read that I can use the intake manifold/fuel rail from the B16a2 -which is preferable since the manifold flows slightly better and the throttle body is a 60mm where the B16a1 is 58mm.

Is there anything else I missed?

Sean
 

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Discussion Starter · #3 ·
Funding dictated this decision. I hadn't planned on another swap in the first place and on top of that I couldn't find another B16a1 long block. Sooooo...I felt lucky to get to where I'm at now. It was like pulling teeth to get this together this time for some reason.
 

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Isn't the A2 normally OBD2 (from the later Del Sol VTEC and the EM1)? Anyway you should be all set to run it with your stock stuff, since you're already wired for a B16 anyway (replacing it right?). I would also recommend swapping to OBD1, it's not that bad really, and not super expensive if you know where to look.
 

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SETI20 said:
downest said:
Isn't the A2 normally OBD2
No.
Ok, then what is it? I know it doesn't really matter for the swap, but I thought it was OBD2, at least for the EM1, I can't imagine Honda making a car in 99-00 that was OBD1.
 

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Synoptic said:
an engine is NOT OBD something. It's always the electronics around it. It doesnt matter what OBD is running the engine, as long as the ECU was made for the same engine (B16) regardless of the revision.
True, but in this case something IS different... the IATis on the intake, not the manifold.
 
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