Engine Controls - Diagnostic Trouble Code P0121

SOURCE: Kia Technician Times

TITLE: P0121

APPLIES TO: 02 Spectra

SERVICE TIP:






When servicing a 2002 Spectra with a P0121 code (TP Sensor Circuit Range/Performance Problem), make sure the cruise control cable is properly adjusted. Even though no other drivability symptoms exist, the cruise control cable bracket that bolts to the intake manifold may have been bent during other servicing making the cable too tight. To adjust the cruise control cable, bend the bracket towards the throttle body until you get approximately 4 mm cable deflection. After adjusting the cruise control cable, check the accelerator cable deflection and adjust if necessary to 4-7 mm by removing the clip at the cable retainer and moving the cable casing in or out of the retainer.