yes when my motor hits vtec it feels really slow and the rpms dont climb as fast, the only code i am throwing is one, which is o2 but i have ran my car many times without one, i have no knock sensor connected it is not throwing that code it is gsr in eg , it is obd1 with obd2 injector clips and injectors on it??? dont know if thats the reason but a buddy has done the same and his car runs fine, i have tried 2 different ecus still same result, making me crazy, the motor makes good power in the low but as soon as vtec, gets slow, , i can hear it engage , i dont know if it some kind of limp mode or what, the ecus work good in another car, i have no clue, some one told me it could be a clogged cat, so ran open header and still no dice, thanks for any input or help,on this problem

 

help?? anyone,

 

try hooking up an 02 sensor yet?

 

im in the process of that right now, thanks , any other ideas?// thanks guys

 

Im having the same problem....did u switch over to bigger cams or something because your VTEC might be set to low

 

i wired up the o2 now no check engine light, its not throwing any codes, it started to do this after i put in a differnt gauge cluster and ecu, , ive tried different ecus still the same, i dont think it could really be the cluster, how ever i am going to change it back and try a non chipped ecu, and try differnt dizzy, thats all i could think of im pretty stumped,???

 

as for the cams i had a stock gsr in the car and it was doing this so took it out said i would fix this problem later, it is now a fully built motor, still problematic

 

changed gauge cluster,still acing up

 

WELL THE MOTOR KIND OF WOKE UP TODAY, THE VTEC WAS WAY TOO LOW FOR THE CAMS IN IT, GOT A DIFFERENT ECU AND PLAYED WITH THE TIMING AND IT PULLS PRETTY HARD NOW, JUST NEED TO GET TUNED, THANKS