[BR3W CITY]

Those app sensor codes have happened to me before. Bascially they happen to the DBW stuff when the input power drops too low. This happens when the idle drops or you have an instant load which decreases available system power to the ecm and DBW.

I've had this happen with my hydroboost installation. I was slowing down, big load came on the engine from the hydroboost (same thing would happen with a/c, high amp alt, EDC etc). The rpm dropped, engine couldn't catch idle fast enough with the big cam and it stalled then caught right back up.

Output voltage stops from the alt, and the engine gets a temporary low power output fault. I did a battery reset, pinged the ecm and cleared codes/flags, and re-started, letting it settle into idle for about 3 minutes. Code never came back.