LS 460 V8-4.6L (1UR-FSE) (2007)
HINT:
-
The A/F CONTROL (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.
NOTE: The Air-Fuel Ratio (A/F) sensor has an output delay of a few seconds and the Heated Oxygen (HO2) sensor has a maximum output
delay of approximately 20 seconds.
-
Following the A/F CONTROL or Control the Injection Volume for A/F sensor procedure enables technicians to check and graph the
voltage outputs of both the A/ F and HO2 sensors.
-
To display the graph, enter the following menus:
1. Intelligent tester - Select: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / A/F CONTROL / A/F CONTROL SYS / AFS B1
S1 and O2S B1 S2 or AFS B2 S1 and O2S B2 S2; then press the YES button and the ENTER button followed by the F4 button.
2. Techstream - Select: Powertrain / Engine / Active Test / Control the Injection Volume for A/F Sensor / A/ F Control System / AFS B1
S1 and O2S B1 S2 or AFS B2 S1 and O2S B2 S2.