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My friend just dropped a 94 B18C into his hatch. I have a quick question for the wiring. On the IAC, the 99 CX civic harness has 3 wires. On the B18C motor there are 2 wires. Which wires do we connect? There's a (+) wire, (-) wire, and a signal wire. I have heard that you don't use the signal wire. Is that true, or is there a alternative. Cause the ECU is throwing a code (14) for the IAC sensor. Also the idling is bad, we had to adjust the idling on the TB to get rid of the rough idle. But it still idles weird.

p.s. we did convert the ECU plugs to OBD1. But we are still working on the wiring on the engine itself.
 
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