i got a custopm p28 for the b16 swap.. its a obd1 jdm b16 in a 92 rs .
custom settings: 2 step launch, revs to only 4.5k when launching- perfect launchs everytime..
redline when cold( to protect motor) 7.2k
Redline when warm motor: 8.5k

heres the problem ive been getting though.. sometimes i cant pass 4.5k when driving normal.. like the ecu wont let me pass it.. and sometimes it doesnt happen.. my VTEC aint working and im only going to 7.2k now..

Its a LS harness with a tapped VTEC wiries.. and the vtec wire is loose, i dont know which pin it goes in.. can someone help me out?