INSTALLATION PROCEDURE 1. INSTALL BACK SONAR OR CLEARANCE SONAR SWITCH ASSEMBLY
2. INSTALL NO. 2 SWITCH HOLE BASE 3. INSTALL LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY LH 4. INSTALL COWL SIDE TRIM BOARD LH 5. INSTALL FRONT DOOR SCUFF PLATE LH 6. INSTALL INSTRUMENT SIDE PANEL LH |
Toyota Tundra Service Manual > Sfi System: Exhaust Gas Recirculation Flow Insufficient Detected (P0401)
DESCRIPTION Based on the driving conditions, the ECM regulates the volume of exhaust gas that is recirculated to the engine's combustion chambers and thus lowers the combustion temperature to reduce NOx emissions. The ECM monitors signals such as engine speed, coolant temperature, electric load, and ...
