service engine light soon is on

[bml]

I tried reseting the computer and no luck. The service engine light came back on. I dont know know anything about the chip besides it was burned in Colorado. I dont have the old h-pipe. I'm going to take it to the local dyno to get the air fuel ratio checked and to see what kind of air the chip is burned for. I will take it in Tuesday or Wednesday and I will keep you guys posted. Also I didnt see any mil elimators on the end of the o2 sensors and the engine pinging or knocking has gotten worse, it only does it under load. Thanks for the help you guys. bml