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Pressure Condition in Secondary Air Injection System Case 5: PRESSURE CONDITION IN SECONDARY AIR INJECTION SYSTEM CASE 5 Pressure Condition in Secondary Air Injection System Case 6: PRESSURE CONDITION IN SECONDARY AIR INJECTION SYSTEM CASE 6 Pressure Condition in Secondary Air Injection System Case 7: PRESSURE CONDITION IN SECONDARY AIR INJECTION SYSTEM CASE 7 Pressure Condition in Secondary Air Injection System Case 8: PRESSURE CONDITION IN SECONDARY AIR INJECTION SYSTEM CASE 8 If the detected pressure is high, the air pump is assumed to be ON and if it alternates sharply, the ASV is HINT: The exhaust pulsation value is calculated in the ECM. If the calculated value exceeds a certain level, the ECM Pressure Less than 2.4 kPa Pulsation Detection Exhaust gas pulsation not detected Air Pump ON Air Switching Valve Open Pressure 2.4 kPa or more Pulsation Detection Exhaust gas pulsation detected Air Pump OFF Air Switching Valve Open Pressure Less than 2.4 kPa Pulsation Detection Exhaust gas pulsation detected Air Pump ON Air Switching Valve Closed Pressure 2.4 kPa or more Pulsation Detection Exhaust gas pulsation not detected Air Pump OFF Air Switching Valve Close Pressure Less than 2.4 kPa Pulsation Detection Exhaust gas pulsation not detected
2009 Toyota Tundra 2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra
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