i have a 95 GSR with GSR head and B20 block running on a chipped P28, the problem is if i stay pass 6000rpm for more than 2 secs vtec shuts off and check engine light come on( ill get the code tomorrow), first i thought it was a bad vtec solenoid so i got that replaced and i still have the problem..anyone know what the problem is? im thinking cuz the p28 doesnt tell the secondary butterflies to come in..my friend told me my head might be clogged up? anyone help would be appreciated thanks