i have a b16 i just got built and put in my DA, i have the HAsport sub harness and for some reason my car is throwing a code 21 the spool valve, its also throwing a code 23 but i know why its doing that. i put another vtec silenoid on and its still throwing a code 21 i cant figure out what the hells the matter can someone please let me know what i should do. vtec works but pulls very slowly is that a side effect form the spool vavle code?

 

here are the honda codes, this is probably why you can't find the info on code 21 and 23

 

http://www.allmotorhonda.com/techpages/codes.htm