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Ok we found major vacuum leak at the breather box and have since fixed. Now we are trying to pass tailpipe sniffer test and it has a high co level, nox is ok but co is too high and trying to fgure out how to bring it down enough to pass.

89 ef hatch, b18 swap obd0 mpfi wiring. iacv deleted, the idle once warmed up is about 1400. Anyway to bring it back down, adjust tps or set screw in the center top of throttle body? car also runs a little rich, just need to pass emissions by 31st.

I have a 89 hatch, doing a b18 swap. Have the ecu, engine, mounts, tranny and such related. Engine bay harness was hacked by previous owner. Was told a DA harness would plug right in? Im planning on just converting from dpfi to mpfi with a dx harness. Im just wondering if the DA harness just...

i bought a 89 crx with a zc second gen motor in it, fouls plugs horribly all the time. it has the honda distro in it and im sure i need the integra one. what i need to know is if any part of the harness or ecu has to be changed. it also has a sensor that is not hooked up on the other cam...

i bought a 89 crx with a zc second gen motor in it, fouls plugs horribly all the time. it has the honda distro in it and im sure i need the integra one. what i need to know is if any part of the harness or ecu has to be changed. it also has a sensor that is not hooked up on the other cam beside...