also on the vtec have you done any work on or near your gauge cluster,ecu,engine temp sensor(below the dizzy). I did some work on my cluster and didn't have the speed sensor wire hooked up, so vtec never knew it was over 20mph. same thing on the ecu end. also when I first got my swap back and the vtec wouldn't kick in the jerk off hadn't connected the wire for the engine temp sensor, if you know the solenoid is good or if you replace it and still no good look at the 3 things needed for vtec, engine temp, rpm and speed. one or more of these sensors/wires could be tits up.