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c. Warm up the engine. d. Enter the following menus: Powertrain/Engine and ECT/Active Test/Control the Injection Volume for A/F sensor. e. Change the fuel injection volume using the Techstream, monitoring the voltage output of Air Fuel Ratio (A/F) and HO2 sensors displayed on the Techstream. HINT: Change the fuel injection volume within the range of -12% and +12%. The injection volume The A/F sensor is displayed as AFS B1S1 or AFS B2S1, and the HO2 sensor is displayed as Result RESULT CHART HINT: A normal HO2 sensor voltage (O2S B1S2 or O2S B2S2) reacts in accordance with increases and Tester Display (Sensor) Voltage Variation Proceed To AFS B1S1 (A/F) Alternates between more and less than 3.3 V OK AFS B1S1 (A/F) Remains at more than 3.3 V NG AFS B1S1 (A/F) Remains at less than 3.3 V NG
2008 Toyota Tundra 2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra
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