I most likely need to have my car retuned. It was originally tuned by hptuners when the previous owner had the car. I bought it because he told me when he went from Nevada to Washington that all of a sudden it started acting up. It's running stupid rich and doesn't want to stay running it goes into fail safe mode. Idles at 11.7:1 air/fuel. I'm Popping up these codes p0135 p0446 p061b p2106. Idle is all over and dies most the time. It's got a stage 3 comp cam, stock heads, long tubes, 42lb injectors, wms 80mm intake, and most likely the cmcv delete plates.