9-137
P0134
3. Check fuel pressure.
• Check the fuel pressure.
Refer to “CHECKING THE FUEL PRESSURE” on page 7-10.
4. Defective O
2
sensor.
a. Replace the O
2
sensor.
Refer to “ENGINE REMOVAL” on page 5-9.
b. Test ride the vehicle according to the test-ride conditions for the O
2
deterioration diagnosis.
Refer to step 2 in “TROUBLESHOOTING” on page 9-135.
At this time, do not check the malfunction diagnosis status (readiness).
c. Check the condition of the DTC using the malfunction mode of the YDT.
5. Malfunction in ECU.
• Replace the ECU, and complete the service.
Refer to “REPLACING THE ECU (Engine Control Unit)” on page 8-56.
6. Delete the DTC and check that the MIL goes off.
• Confirm that the DTC has a condition of “Recovered” using the YDT, and then delete the DTC.
Is it in the “Recovered” condition?
YES
→ Go to step 6, and complete the service.
NO
→ Go to step 3.
Is check result OK?
YES
→ Go to step 4.
NO
a. Replace the fuel pump.
Refer to “REMOVING THE FUEL PUMP” on page 7-3.
b. Test ride the vehicle according to the test-ride conditions for the O
2
deterioration diagnosis.
Refer to step 2 in “TROUBLESHOOTING” on page 9-135.
At this time, do not check the malfunction diagnosis status (readiness).
c. Check the condition of the DTC using the malfunction mode of the YDT.
Is it in the “Recovered” condition?
YES
→ Go to step 6, and complete the service.
NO
→ Go to step 4.
Is it in the “Recovered” condition?
YES
→ Go to step 6, and complete the service.
NO
→ Go to step 5.
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