ok guys have a 96 dx coupe....i have replaced the old non vtec harness with the correct vtec harness...i plug up my chipped p28...make sure the vtec lines are hooked up...and the vtec is still not working...does anyone have any suggestions? i have put in 3 different chips into the ecu and vtec still does not engage...any ideas?

i also just removed this gsr swap from my buddies teg...and it did work and i kno it didnt just quit in the process of the swap..

 

bump

 

you sure everthing is hooked up right i would double check if i was you.

 

my speedo stopped working as well...the speedometer was working with the gsr ecu...when i put my chipped p28 in it with a chip speedo quit working...vtec never engaged with either ecu......somethings not right...why would a p28 ecu chipped be throwing vss code and forcing vtec not to work?

 

well i think if its a non chipped ecu vtec needs the vss to tell vtec when to engauge i think its above 15 mph, what happens when u put a non chipped ecu in your car?

 

I dont think it was wired correctly, take it into a shop and have it double checked.

 

vss good? selinoid good? oil ok?