The code was O2 censor and speed censor, I replaced both and cleared code, drove car two blocks and ck engine light came on again with same codes?????There's a reason the CEL came on. Extinguishing it may not make the problem go away. Conversely it may be nothing more than cheap gas or a vent clogged gas cap. Regardless, you should find out what the code is and correct the problem. Somebody here can direct you to Autozone? for a free code read to find out what's going on.