Isuzu D-Max / Isuzu Rodeo (TFR/TFS). Manual - part 207

ENGINE DRIVEABILITY AND EMISSIONS

6E–69

F4: Injector Balance Test
When the Tech 2 is operated, selected injector turns ON
or OFF.
The circuit is normal if engine vibration is changed at
selected cylinder in accordance with this operation
when engine is idling.

– Press “Injector Off” key. 

Then, engine speed drops and vibration occurs when
a cylinder is selected.

– Press “Quit” Key.

Injector Balance Test

Engine Speed 

800 RPM

Desired Idle Speed 

762 RPM

Engine Coolant Temperature 

80

Start Up ECT 

50

Intake Air Temperature 

30

Start Up IAT 

25

Manifold Absolute Pressure 

35KPa

Injector 1 

 On

6E–70

ENGINE DRIVEABILITY AND EMISSIONS

PLOTTING SNAPSHOT GRAPH

This test selects several necessary items from the data
list to plot graphs and makes data comparison on a long
term basis. It is an effective test particularly in emission
related evaluations.

060RX037

For trouble diagnosis, you can collect graphic data
(snap shot) directly from the vehicle.
You can replay the snapshot data as needed. Therefore,
accurate diagnosis is possible, even though the vehicle
is not available.

ENGINE DRIVEABILITY AND EMISSIONS

6E–71

Plotting Graph Flow Chart (Plotting graph after obtaining vehicle information)

D06RY00167

6E–72

ENGINE DRIVEABILITY AND EMISSIONS

Flow Chart for Snapshot Replay (Plotting Graph)

060RX0-40