hey guy i need ur help bad!! im almost 100% sure im hearing detonation from my motor.. if i hold my revs at 4.000rmp my exhaust starts to pop like crazy.. also once i reset my ecu im only throwing a code 20 but then once i've started my car up and reved it a lil it throws the knock sensor..
ok this is my setup - 94 eg hatch 0BD2 b18c4 motor (same as a gsr motor but with lsd) OBD2 engine harness, OBD1 cabin (underdash harness) harness and a JDM OBD1 P72 ecu..

now im still running a OBD2 distributor, so could this possibly be the problem??

how can i fix this problem guys? wot do i have to do?

any help would be very much appreaciated... Thanx