Since my 95 GSR w/210k mi now rides smooth I've naturally been winding the crap out of it. Unfortunately, the VTEC has stopped engaging, or is intermittent. It sort of sputtered the other morning at the 4400 rev engagement point and now it doesn't engage or only does a little or it cuts out (the extra VTEC ooomph). Otherwise it runs fine. What's up with this? I don't know a whole lot about it, but I rebuilt the head after the timing belt broke so I know a little.