ok havent got my s200 installed yet. i have a CEL and vtec wont work. does the s200 have to power to over write CEL codes so vtec can work?

 

you can clear codes with s200 if vtec is not working there might be a bigger problem. what code are you throwing

 

im not for sure.. i just put itbs on.. tps is not 100% calibrated

 

Short the diagnostic wire to ground and check the code. Fix the problem if possible.

The ROMeditor can disable certain kinds of error codes, like INJ circuit error (CEL16), o2 heater (CEL41), o2 closed-loop disable (CEL1), VTEC pressure check (CEL22?), etc., but it can't disable all of them.