Read Value Of Intelligent Tester Output Voltage Of Af Sensor

(a) Connect an intelligent tester to the DLC3.

(b) Start the engine.

(d) Warm up the Air-Fuel Ratio (A/F) sensor at an engine speed of 2,500 rpm for 90 seconds.

(e) Select the following menu items: DIAGNOSIS / ENHANCED OBD II / SNAPSHOT / MANUAL SNAPSHOT / USER DATA / AFS B1S1 or AFS B2S1 and ENGINE SPD.

(f) Check the A/F sensor voltage three times, when the engine is in each of the following conditions:

(1) While idling (check for at least 30 seconds)

(2) At an engine speed of approximately 2,500 rpm (without any sudden changes in engine speed)

(3) Raise the engine speed to 4,000 rpm and then quickly release the accelerator pedal so that the throttle valve is fully closed.

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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