HINT
If any DTCs other than P0420 or P0430 are output, troubleshoot those DTCs first.
B -- GO TO DTC CHART See: Diagnostic Trouble Code Descriptions/SFI System
A -- Continue to next step.
2. PERFORM ACTIVE TEST USING TECHSTREAM (AIR FUEL RATIO CONTROL)
(a) Connect the Techstream to the DLC3.
(b) Start the engine.
(c) Turn the Techstream on.
(d) Warm up the engine at an engine speed of 2500 rpm for approximately 90 seconds.
(e) Enter the following menus: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor.
(f) Perform the Control the Injection Volume for A/F Sensor operation with the engine in an idling condition (press the RIGHT or LEFT
button to change the fuel injection volume).
(g) Monitor the voltage outputs of the air fuel ratio and heated oxygen sensors (AFS Voltage B1S1 and O2S B1S2 or AFS Voltage B2S1
and O2S B2S2) displayed on the Techstream.
HINT
- The Control the Injection Volume for A/F Sensor operation lowers the fuel injection volume by 12.5% or increases the
injection volume by 25%.
- Each sensor reacts in accordance with increases and decreases in the fuel injection volume.
No comments:
Post a Comment