I have '97 h22 and the vtec just started acting up..Without even going full throttle(prob 3/4) the vtec will engage hard, cut off, then come back on..Sometimes at full throttle it won't even engage!!! A friend with a '99 civic SI said it might be the selenoid for the vtec..HONDA WANTS $258.48!! He also mentioned the ecu...Has anyone had this prob., know where I can find oem selenoids or better for a decent price, or know what the problem might be?