Toyota Tundra Service Manual > Sfi System: Secondary Air Injection System Pump Stuck On Bank1 (P2444-P2447)
DESCRIPTION Refer to P2440 (See page ). DTC No. DTC Detection Condition Trouble Area P2444 P2446 Secondary air pressure more than 3.0 kPa (23 mmHg) despite ECM commanding air pump to turn off (2 trip detection logic) Short in air pump circuit Open or short in pressure sensor circuit Pressure sensor ...
