DTC P0133 [L3 Turbo]


id0102b7804800

DTC P0133

A/F sensor circuit slow response

DETECTION CONDITION
•  The PCM monitors the peak differential value of oxygen sensor signal after A/F fluctuation being provided when the following conditions are met. If the peak differential value is lower than the threshold value.
•  The PCM determines that the A/F sensor circuit is slow.
MONITORING CONDITIONS
―  A/F sensor heater, HO2S heater, A/F sensor, HO2S, and TWC Repair Verification Drive Mode
―  The following conditions are met:
•  A/F sensor heater monitor is completed.
•  Fuel system loop status is closed loop fuel control.
―  Engine speed: 1,350—3,500 rpm
―  Charging efficiency: 21—71 % (at engine speed: 2,500 rpm)
―  Intake air volume: 5—40 g/s
―  Engine coolant temperature above 70 °C {158 °F}
Diagnostic support note
•  This is an intermittent monitor (A/F sensor, HO2S).
•  The MIL illuminates if the PCM detects the above malfunction condition in two consecutive drive cycles or in one drive cycle while the DTC for the same malfunction has been stored in the PCM.
•  DIAGNOSTIC MONITORING TEST RESULTS is available.
•  PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
•  FREEZE FRAME DATA is available.
•  DTCs are stored in the PCM memory.
POSSIBLE CAUSE
•  A/F sensor malfunction
•  A/F sensor looseness
•  Exhaust system leakage
•  A/F sensor deterioration
•  Fuel pressure sensor malfunction
•  High pressure fuel pump malfunction
•  Clogged or restricted fuel line
•  Fuel leakage in the fuel line between the fuel delivery pipe and the fuel pump
•  Purge solenoid valve malfunction
•  Improper connection purge solenoid hose
•  Engine malfunction (Engine coolant leakage)
•  Insufficient compression
•  PCM malfunction

Diagnostic procedure

STEP

INSPECTION

ACTION

1
VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAVE BEEN RECORDED
•  Have the FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS (A/F sensor, HO2S related) been recorded?
Yes
Go to the next step.
No
Record the FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS on the repair order, then go to the next step.
2
VERIFY RELATED SERVICE INFORMATION AVAILABILITY
•  Verify related Service Information availability.
•  Is any related Service Information available?
Yes
Perform the repair or diagnosis according to the available Service Information.
•  If the vehicle is not repaired, go to the next step.
No
Go to the next step.
3
VERIFY RELATED PENDING AND STORED DTC
•  Turn the ignition switch off, then to the ON position (Engine off).
•  Verify the pending or stored DTCs using the M-MDS.
•  Is DTC P0443 also present?
Yes
Go to DTC P0443 troubleshooting procedures, then go to Step 16.
No
Go to the next step.
4
IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
•  Is DTC P0133 on FREEZE FRAME DATA?
Yes
Go to the next step.
No
Go to troubleshooting procedures for DTC on FREEZE FRAME DATA.
5
INSPECT A/F SENSOR
•  Is there any malfunction?
Yes
Go to Step 8.
No
Go to the next step.
6
INSPECT INSTALLATION OF A/F SENSOR
•  Inspect if the A/F sensor is loosely installed.
•  Is the A/F sensor installed securely?
Yes
Go to the next step.
No
Retighten the A/F sensor, then go to Step 16.
7
INSPECT GAS LEAKAGE FROM EXHAUST SYSTEM
•  Visually inspect if any gas leakage is found between the exhaust manifold and A/F sensor.
•  Is there gas leakage?
Yes
Repair or replace the malfunctioning exhaust part, then go to Step 16.
No
Replace the A/F sensor, then go to Step 16.
8
INSPECT FUEL PRESSURE (HIGH-SIDE)
•  Access and monitor the FUEL PRES PID.
•  Is the FUEL PRES PID value within the specification?
Yes
Go to Step 13.
No
Go to the next step.
9
IDENTIFY CAUSE BY FUEL PRESSURE SENSOR OR HIGH PRESSURE FUEL PUMP
•  Is the vehicle accelerate performance normally?
Yes
Go to the next step.
No
Go to Step 11.
10
INSPECT FUEL PRESSURE SENSOR
•  Inspect the fuel pressure sensor.
•  Is the fuel pressure sensor normal?
Yes
Go to the next step.
No
Replace the fuel delivery pipe, then go to Step 16.
11
INSPECT HIGH PRESSURE FUEL PUMP
•  Replace the high pressure fuel pump.
•  Monitor FUEL_PRES PID.
•  Is the FUEL_PRES PID value within the specified?
Yes
Go to Step 13.
No
Go to the next step.
12
INSPECT FUEL PRESSURE (LOW-SIDE)
•  Connect the fuel pressure gauge between fuel pump and high pressure fuel pump.
•  Measure the low side fuel pressure.
•  Is the low side fuel pressure within the specification?
Yes
Go to the next step.
No
Inspect for the following:
•  Fuel line restriction
•  Fuel filter clogging
If normal replace the fuel pump. Then go to Step 16.
13
INSPECT PURGE SOLENOID VALVE
•  Inspect purge solenoid valve and vacuum hose connection.
•  Are there any malfunction?
Yes
Repair or replace malfunctioning part according to inspection result.
Then go to Step 16.
No
Go to the next step.
14
INSPECT SEALING OF ENGINE COOLANT PASSAGE
•  Perform the “ENGINE COOLANT LEAKAGE INSPECTION”.
•  Is there any malfunction?
Yes
Go to the next step.
No
Repair or replace the malfunctioning part according to the inspection results.
Then go to Step 16.
15
INSPECT ENGINE COMPRESSION
•  Inspect the engine compression.
•  Is the engine compression normal?
Yes
Go to the next step.
No
Overhaul the engine, then go to the next step.
16
VERIFY TROUBLESHOOTING OF DTC P0133 COMPLETED
•  Make sure to reconnect all disconnected connectors.
•  Turn the ignition switch to the ON position. (Engine off)
•  Clear the DTC from the memory using the M-MDS.
•  Perform the A/F sensor heater, HO2S heater, A/F sensor, HO2S, and TWC Repair Verification Drive Mode.
•  Is the PENDING CODE for this DTC present?
Yes
Replace the PCM, then go to the next step.
No
Go to the next step.
16
VERIFY AFTER REPAIR PROCEDURE
•  Perform the “AFTER REPAIR PROCEDURE”.
•  Are any DTCs present?
Yes
Go to the applicable DTC troubleshooting.
No
Troubleshooting completed.