552 Code

[GMAN]

I just hooked my car up to the computer to see why I am getting the Check Engine light. Code 552 is what I get. What does this mean, and what do I have to do to get this resolved?

 

[SHOZ123]

DTC 552 is for Secondary Air Injection. Kind of strange seeing as the Gen 1-2 SHO does not have it. Sure about your codes and PCM?