CHECKED FOR CUSTOMER CONCERN AND FOUND CHECK ENGINE LIGHT ON CHECKED FOR CODES AND FOUND P2138 THROTTLE /PEDAL POSITION SENSOR/SWITCH D/E VOLTAGE CORRELATION P2271 O2 SENSOR SIGNAL STUCK RICH BANK 1 SENSOR 2, B1517 ALTERNATOR IS CHARGING 14.7 TO 14.9 VOLTS TOO HIGH RECOMMEND REPLACING BATTERY AND CHECK SYSTEM AGAIN