hey all first post here
hey all first post here hey all this is my first post here. I have a question, my car has some intake, exaust work and a cam job, in it, and betwen 1500 rpm and 2400 rpm i get ping & knock, i looked at the a/f ratio on a dyno at at that stage the car is runing pretty lean, after the wot the car riches out some but until then it is lean. Now is there a way to change the computer so that the car won run so lean betwen 1500 ~2400 rpm. It is actually up in the 15-16 a/f ratio during the lean condition so if anyone know how i could actually change the computer to rich it out plz let me know
Originally Posted by mike72678
Maybe a bad O2 sensor ?
ok all what is the most sure way to test and see if you have a cracked head gasket or a crakced bloked, primarily the gasket, and coolant is leaking trough. Heeellppp 
