CRX B18a1 vacuum diagram
Posted on July 4, 2010 by Jesse O'Brien in In the Garage
Back by popular demand, a wiring diagram for the obd0 b18a1 in an MPFI 88-91 CRX (that’s HF and Si, not the DX). This should also apply to EF/ED Civics, but I’m running on memory here and don’t have a car to verify this on.
If there are any questions or corrections (as I’m sure there will be), feel free to leave them in the comments.
Is this the same as the b16a1 set up in a crx hf 89? It looks really similar, there’s a few capped tubes and pipes in the bay and i’m trying to find out what is what and whether they were done right by the previous owner.
Cheers
It’s not the same, only vaguely similar. The b16a1 intake manifold is completely different, and has fewer vacuum connections on it. I believe you want this diagram:
http://www.hamotorsports.com/b16a1-vacuum-diagram.html
Awesome thank you!