DTC P0133:00 [ZJ, ZY]
id0102c0702400
DTC P0133:00 |
A/F sensor circuit slow response |
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DETECTION CONDITION
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• 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
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.
• PENDING CODE is available if the PCM detects the above malfunction condition during first drive cycle.
• FREEZE FRAME DATA is available.
• The DTC is stored in the PCM memory.
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POSSIBLE CAUSE
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• A/F sensor looseness
• Exhaust system leakage
• Purge solenoid valve malfunction
• Improper connection purge solenoid hose
• Clogged or restricted fuel line
• Fuel leakage in the fuel line between the fuel distributor and the fuel pump
• Engine malfunction
• A/F sensor malfunction
• PCM malfunction
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Diagnostic procedure
STEP |
INSPECTION |
ACTION |
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1
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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?
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Yes
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Go to the next step.
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No
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Record the FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS on the repair order, then go to the next step.
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2
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VERIFY RELATED SERVICE INFORMATION AVAILABILITY
• Verify related Service Information availability.
• Is any related Service Information available?
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Yes
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Perform repair or diagnosis according to the available Service Information.
• If the vehicle is not repaired, go to the next step.
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No
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Go to the next step.
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3
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VERIFY RELATED PENDING CODE AND STORED DTC
• Turn the ignition switch off, then to the ON position (engine off).
• Verify the related PENDING CODE and stored DTCs using the M-MDS.
• Are any other DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [ZJ, ZY].)
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No
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Go to the next step.
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4
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IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA
• Is the DTC P0133:00 on FREEZE FRAME DATA?
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Yes
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Go to the next step.
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No
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Go to the troubleshooting procedures for DTC on FREEZE FRAME DATA.
(See DTC TABLE [ZJ, ZY].)
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5
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INSPECT INSTALLATION OF A/F SENSOR
• Inspect if the A/F sensor is loosely installed.
• Is the A/F sensor installed securely?
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Yes
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Go to the next step.
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No
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Retighten the A/F sensor, then go to Step 12.
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6
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INSPECT GAS LEAKAGE FROM EXHAUST SYSTEM
• Visually inspect it there is any gas leakage between the exhaust manifold and A/F sensor.
• Is there gas leakage?
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Yes
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Repair or replace the malfunctioning part according to the inspection results, then go to Step 12.
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No
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Go to the next step.
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7
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INSPECT PURGE SOLENOID VALVE AND VACUUM HOSE
• Inspect the purge solenoid valve and vacuum hose connection.
• Is there any malfunction?
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Yes
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Repair or replace the malfunctioning part according to the inspection results, then go to Step 12.
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No
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Go to the next step.
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8
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INSPECT FUEL LINE PRESSURE
• Turn the ignition switch off.
• Inspect the fuel line pressure while the engine running.
• Is the fuel line pressure normal?
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Yes
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Go to the next step.
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No
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Repair or replace the malfunctioning part according to the inspection results, then go to Step 12.
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9
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INSPECT SEALING OF ENGINE COOLANT PASSAGE
• Perform the “ENGINE COOLANT LEAKAGE INSPECTION“.
• Is there any malfunction?
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Yes
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Repair or replace the malfunctioning part according to the inspection results, then go to Step 12.
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No
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Go to the next step.
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10
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INSPECT ENGINE COMPRESSION
• Inspect the engine compression.
• Is there any malfunction?
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Yes
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Perform the engine overhaul for repairs, then go to Step 12.
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No
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Go to the next step.
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11
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INSPECT A/F SENSOR
• Inspect the A/F sensor.
• Is there any malfunction?
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Yes
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Replace the A/F sensor, then go to the next step.
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No
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Go to the next step.
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12
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VERIFY DTC TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected connectors.
• Clear the DTC from the PCM memory using the M-MDS.
• Drive the vehicle under the MONITORING CONDITIONS.
• Perform the DTC Reading Procedure.
• Is the PENDING CODE for this DTC present?
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Yes
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Replace the PCM, then go to the next step.
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No
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Go to the next step.
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13
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VERIFY AFTER REPAIR PROCEDURE
• Perform the “AFTER REPAIR PROCEDURE”.
• Are any DTCs present?
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Yes
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Go to the applicable DTC inspection.
(See DTC TABLE [ZJ, ZY].)
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No
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DTC troubleshooting completed.
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