(h) Read the Test Value.
Standard Current:
Less than 3.0 mA
HINT
If the Techstream shown Incomplete again, add the vehicle speed and use the second gear to decelerate the vehicle.
NG -- REPLACE AIR FUEL RATIO SENSOR
OK -- REPLACE HEATED OXYGEN SENSOR
7. READ VALUE USING TECHSTREAM (O2S B1S2 OR O2S B2S2)
(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Start the engine.
(e) Enter the following menus: Powertrain / Engine / Data List / A/F Control System / O2S B1S2 or O2S B2S2.
(f) After warming up the engine, run the engine at an engine speed of 2500 rpm for 3 minutes.
(g) Read the output voltage of the heated oxygen sensor when the engine speed is suddenly increased.
HINT
Quickly accelerate the engine to 4000 rpm 3 times using the accelerator pedal.
Standard:
Fluctuates between 0.4 V or less and 0.55 V or more.
NG -- INSPECT FOR EXHAUST GAS LEAK
OK -- Continue to next step.
8. PERFORM ACTIVE TEST USING TECHSTREAM (INJECTION VOLUME)
(a) Connect the Techstream to the DLC3.
(b) Start the engine.
(c) Turn the Techstream on.
(d) Warm up the engine.
(e) Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor.
(f) Change the fuel injection volume using the Techstream, and monitoring the voltage output of air fuel ratio and heated oxygen sensors
displayed on the Techstream.
HINT
- Change the fuel injection volume within the range of -12% and +12%. The injection volume can be changed in 1%
graduations within the range.
- The air fuel ratio sensor is displayed as AFS Voltage B1S1 or AFS Voltage B2S1, and the heated oxygen sensor is displayed as
O2S B1S2 or O2S B2S2, on the Techstream.
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