If simulation function of WPS or equivalent is used:
FUEL INJECTOR OPERATION INSPECTION TABLE
| STEP | INSPECTION | RESULTS | ACTION |
|---|---|---|---|
| 1 | Start the engine and warm it up until normal operating temperature. Connect the WDS or equivalent to DLC-2. Select the INJ_1, INJ_2, INJ_3, and INJ_4 PIDs Turn the fuel injector from on to off using the PIDs for each cylinder. Does the engine speed drop? |
Yes | Fuel injector work properly. |
| No | Engine speed does not drop any cylinders: Go to the next step. Engine speed drop some cylinders: Go to Step 3. |
||
| 2 | Perform main relay operation inspection. (See MAIN RELAY OPERATION INSPECTION .) Does the main relay work properly? |
Yes | Go to the next step. |
| No | Repair or replace malfunctioning parts. | ||
| 3 | Inspect the fuel injector for suspected cylinder. (See FUEL INJECTOR INSPECTION
.) Is the fuel injector okay? |
Yes | Inspect the following for suspected cylinder:
|
| No | Replace the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION .) |
||
| 4 | Perform KOER self-test function using WDS or equivalent. (See KOEO/KOER SELF TEST .) Are DTC P0201, P0202, P0203 and/or P0204 present? |
Yes | Go to appropriate DTC test. (See DTC TABLE .) |
| No | Go to the next step. | ||
| 5 | Inspect the fuel injector for suspected cylinder. (See FUEL INJECTOR INSPECTION .) Is the fuel injector okay? |
Yes | Inspect the following for suspected cylinder:
|
| No | Replace the fuel injector. (See FUEL INJECTOR REMOVAL/INSTALLATION .) |