vtec engagement problem

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b16acivic96

New Member
hey guys im new to honda world and ive searched everywhere and im just not getting it. i have a 96 civic with a obd0 1st gen jdm b16a with a 94-95 gsr ecu obd1. i bought the car in december and i knew nothing about the vtec or hearing when it kicks in. well it never worked until about a month ago it started working out of know where... now it stop working again. i do have cel and i checked and its code 21. i tested the selenoid and it does work. clicks when i hook power up to it. read a guy put a toggle switch for it so i tried it and vtec works when i flick the switch at 5200 rpms. what could be my problem? i even ran a wire from seloniod right to the a4 pin on ecu to see if i had a bad wire and still didnt work. please any help would be great.
 
but wait there is only one wire coming from the selonoid. the selonoid is grounded by being bolted to motor
 
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