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Am I supposed to swap the b16a's intake manifold with my b18's for emissions purposes or anything? I mean, it runs fine but fails emissions due to to much fuel in the mixture. just want to make sure before I pay a mechanic to tell me that. Also I haent installed the proper computer. Still using the b18's. Maybe thats why.
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dont swap the intake since it will not solve your problem. Get a B&M fuel pressure regulator and a gauge then adjust the fuel pressure down and that will help you pass emmisions. I did that with my girlfriends civic it passed with no problem.

ie.-> fule psi used to be @ 45psi and I put it @ 25psi for emissions.

So spend $100 for the kit and DIY. Its easy and it can help you in the future with tunning your car to the best air/fuel mixture(dyno).

Good luck. stefan525
 
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