Hey dumb question, got a 2.0 turbo sunbird running cpde 59 on the stock 7749 ecm. is there any reason as to why i would get knock in child weather vs hot? First cold days ive had wkth this sunbird, I'm getting knock retard of less than 5 between 4-10 psi area.. I back the timing back to single digits before i get rid of most of it, which makes no power....when it was hot i has low teens and very little to no retard. Cold should have opposite effect. I dont understand. A.f is around low 11's. Is there something I'm missing?