Refer to DTC P008700.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Memory | Note |
|---|---|---|---|---|---|---|
| P008800 | Fuel Rail / System Pressure - Too High | Although the ECM is requesting the fuel pump assembly (for high pressure side) to open the spill control valve, fuel pressure increases 3 MPa (30.6 kgf/cm2, 435 psi) from target pressure for about 10 seconds (1 trip detection logic). | ·
Fuel pump assembly (for high pressure side) ·
Fuel delivery pipe ·
ECM |
Comes on | DTC stored | SAE Code:
P0088 |
If the fuel pressure increases despite a decrease request signal being sent to the fuel pump assembly (for high pressure side) by the ECM, the ECM will illuminate the MIL and store this DTC.
| Required Sensors/Components | Fuel pressure sensor |
| Frequency of Operation | Continuous |
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Permanent misfire and fuel system DTCs can only be cleared when performing the universal trip driving pattern when no malfunction is detected.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Record the Freeze Frame Data.
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
Turn the ignition switch off and wait for at least 30 seconds.
Start the engine.
Turn the GTS on.
Based on the engine speed, engine load and other conditions displayed in the Freeze Frame Data, reproduce the conditions present when the DTC was stored.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the pending DTCs.
If a pending DTC is output, the system is malfunctioning.
If a pending DTC is not output, perform the following procedure.
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
Input the DTC: P008800.
Check the DTC judgment result.
| GTS Display | Description |
|---|---|
| NORMAL | ·
DTC judgment completed ·
System normal |
| ABNORMAL | ·
DTC judgment completed ·
System abnormal |
| INCOMPLETE | ·
DTC judgment not completed ·
Perform driving pattern after confirming DTC enabling conditions |
If the judgment result shows NORMAL, the system is normal.
If the judgment result shows ABNORMAL, the system has a malfunction.
Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the DTCs.
| Result | Proceed to |
|---|---|
| DTC P008800 is output | A |
| DTC P008800 and other DTCs are output | B |
If any DTCs other than P008800 are output, troubleshoot those DTCs first.
A
B
Connect the GTS to the DLC3.
Start the engine.
Turn the GTS on.
Enter the following menus: Powertrain / Engine / Data List / High Fuel Pressure Sensor.
| Tester Display |
|---|
| High Fuel Pressure Sensor |
According to the display on the GTS, read the Data List while racing the engine.
Fuel pressure fluctuates.
| Proceed to |
|---|
| OK |
| NG |
Perform "Inspection After Repair" after replacing the fuel delivery pipe.
OK
NG
Replace the fuel pump assembly (for high pressure side).
Perform "Inspection After Repair" after replacing the fuel pump assembly (for high pressure side).
| Proceed to |
|---|
| NEXT |
NEXT
Connect the GTS to the DLC3.
Turn the ignition switch to ON.
Turn the GTS on.
Clear the DTCs.
Turn the ignition switch off and wait for at least 30 seconds.
| Proceed to |
|---|
| NEXT |
NEXT
Drive the vehicle in accordance with the driving pattern described in the Confirmation Driving Pattern.
Enter the following menus: Powertrain / Engine / Trouble Codes.
Read the DTCs.
| Result | Proceed to |
|---|---|
| DTCs are not output | A |
| DTC P008800 is output | B |
A
B