Obd0 to obd1 code 22 wiring help!

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I swapped a d15b sohc vtec motor into my 91 dx hatch. After conversion I has multiple code and am now down to just one code 22 Vtec switch. The obd0 to obd1 adaptor harness has grey wire that popped out of connector at ecu. Traced wire back to vtec pressure switch (blu/blk) which pin does it go to at ecu. Thanks in advance for your help. Also does anyone know if vtec switch is open or closed at idle?

JTRACERX69 :blink: