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RESULT REFERENCE HINT: A normal HO2 sensor voltage (O2S B1 S2 or O2S B2 S2) reacts in accordance with increases and Fig. 99: HO2 Sensor Voltage Graph NG: Go to step 22 OK: Go to Next Step 8. CHECK FOR EXHAUST GAS LEAK a. Check for exhaust gas leak. OK: No gas leakage. NG: REPAIR OR REPLACE EXHAUST GAS LEAK POINT OK: Go to Next Step 9. CHECK FUEL PRESSURE a. Check the fuel pressure (see ON-VEHICLE INSPECTION ). NG: GO TO FUEL PRESSURE SWITCHING SYSTEM OK: Go to Next Step 10. INSPECT FUEL INJECTOR (INJECTION AND VOLUME) Display Item (Sensor) Voltage Variation Proceed to AFS Voltage B1 S1 (A/F) Alternates between more and less than 3.3 V OK Remains at more than 3.3 V NG Remains at less than 3.3 V NG
2009 Toyota Tundra 2009 ENGINE PERFORMANCE Engine Control System (3UR-FBE) - Tundra
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