I have a 1994 GT/Cobra Clone. I just recently put a CHP 306 Short Block in my car with GT40 X heads and a stock 93 GT cam. The car should be currently running 8.5:1 compression due to later plans of forced induction. The car has been running very poorly since the motor swap. I ran a Engine Diagnostic tool and it threw no codes with a KOEO test. But when I ran the KOER engine test it threw the codes 311 and 314. 311 says Air system inoperative durning KOER(Bank number 1 with dual heated oxygen sensors.) 314 says Air system inoperative durning KOER(Bank number 2 with dual heated oxygen sensors.) I plan on changing the O2 sensors but does anyone know what my possible problem could be beside this??? I am sorry this is so long but any input is needed. Thanks.
