B18a1 Wiring Diagram - schematron For D16, B16A, B17A B This vacuum diagram shows vacuum routing and sensor location for a This vacuum diagram is also useful for Civic or CRX with a B18A1 engine swap is Wiring Diagram? A wiring diagram is a schematic that uses abstract pictorial symbols to display all the interconnections of components at an exceedingly system. b16 and b18 vtec engine diagrams - Tech Help - NZHondas hi guys im just wondering if anyone has an exploded diagram of the b16a and b18c labelled exploded diagram that they can share. i plan to strip 1 soon and i would feel more confident if theres a diagram back up.d anyone happen to know what could be at fault if the vtec doesnt kick in? Wiring Harness Conversions for Honda & Acura Engine Swaps *SSR 88-91 Honda Civic/ CRX. 2 point to 4 point engine wiring harness conversion For D16, B16A, B17A B18, & ZC Swaps. Note: Standard harness does not include VTEC wiring so if you are going to be wiring in VTEC your self or not using a VTEC motor select standard harness conversion.