I recently started hearing a weird noise when my Vtec is "suppose" to engage. I disconnected my Vtec harness that connects to the solenoid and the harness to the pressure switch and the noise stopped. I got a new pressure switch and reconnected the harnesses but the noise is still there. It sounds like a rattling noise from the engine and you can hear the exhaust popping like when your plugs are going bad. A GSR without Vtec isn't much fun. Need help!