the throttle body has a coating on it and you can tear up the coating by spraying it with the wrong stuff. what you are talking about almost sounds like a vaccum leak. could be a glitch in the o2s but i would ck the vaccum first. also if the ck engine light is on then that has it in cold start mode, could be what your feeling. if it has o2 sensors, then it came with cat. converters. also the air pump pums air into the exhaust, without it there your o2 sensor will never read correctly. but you can take a spark plug fouler, drill out the center and install it between the o2 sensor and the exhaust bung, if one doesnt help use 2