ok having some timing problems with my 89 hatch i have a b16 a3 im using a hondata s300 for tuning ok problem occurs when its under load my timing will drop down to negative 2 degrees then at about 1500 rpm's it will jump to 6-8 degrees then at idle it will be about 28 i believe it's my dizzy but i've tried retarding the idle timing to 16 degrees btdc and it doesnt help any input for my what it could be