hello, i have a 94 integra gsr, B-18C1, and the check engine light is on. i scanned the CEL. and it came up with CEL code 23. which is the knock sensor of course. Anyways i replaced the knock sensor, cleared the code and took the car for a test drive. The CEL light came back on, but until the VTEC kicked in, and at high speed. What could be the other problem be that i am having????