Diagnostic procedure

DTC P0133, P0153 - DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA AND DIAGNOSTIC MONITORING TEST RESULTS HAVE BEEN RECORDED Have FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS (HO2S related) been recorded?	Yes	Go to the next step.
1		No	Record FREEZE FRAME DATA and DIAGNOSTIC MONITORING TEST RESULTS on repair order, then go to the next step.
2	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Check for related Service Bulletins and/or online repair information availability. Is any related repair information available?	Yes	Perform repair or diagnosis according to the available repair information. If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	VERIFY RELATED PENDING AND STORED DTCS Turn key to OFF, then ON (Engine off). Verify pending and /or stored DTCs using the WDS or equivalent. Is the DTC P0442 or P0443 also present?	Yes	Go to appropriate DTC troubleshooting procedures, then go to Step 14.
3		No	Go to the next step.
4	IDENTIFY TRIGGER DTC FOR FREEZE FRAME DATA Is DTC P0133 or P0153 on FREEZE FRAME DATA?	Yes	Go to the next step.
4		No	Go to troubleshooting procedures for DTC on FREEZE FRAME DATA, (See DTC TABLE .)
5	VERIFY CURRENT INPUT SIGNAL STATUS Warm up engine. Access O2S11 for P0133 or O2S21 for P0153 PID using the WDS or equivalent. Check PID under following accelerator pedal conditions (in PARK). Is PID reading okay? More than 0.55 V when suddenly depress accelerator pedal (rich condition). Less than 0.55 V just after release of accelerator pedal (lean condition).	Yes	Go to step 8.
5		No	Go to the next step.
6	INSPECT INSTALLATION OF FRONT HO2S Check if front HO2S is loosely installed. Is sensor installed securely?	Yes	Go to the next step.
6		No	Retighten sensor, then go to Step 14.
7	INSPECT GAS LEAKAGE FROM EXHAUST SYSTEM Visually check if any gas leakage is found between exhaust manifold and front HO2S. Is there gas leakage?	Yes	Repair or replace any faulty exhaust parts, then go to Step 14.
7		No	Replace sensor, then go to Step 14.
8	INSPECT LONG TERM FUEL TRIM Access following PIDs For P0133: LONGFT1 For P0153: LONGFT2 Compare it with FREEZE FRAME DATA (FFD) recorded at Step 1. Is it below FFD value?	Yes	Engine is driven under rich condition. Go to the next step.
8		No	Engine is driven under lean condition. Go to step 10.
9	INSPECT FUEL LINE PRESSURE (Excessive fuel line pressure) Turn the ignition switch off. Inspect fuel line pressure while engine running. (See FUEL LINE PRESSURE INSPECTION .) Is fuel line pressure within 420-460 kPa {4.3-4.6 kgf/cm ² , 61-66 psi}?	Yes	Go to the next step.
9		No	Inspect fuel pump maximum pressure and fuel return pipe for clogged. (See FUEL PUMP UNIT INSPECTION .) If any problem is found, repair or replace suspected parts. If all items above are okay, replace pressure regulator. Then go to Step 14.
10	INSPECT FUEL LINE PRESSURE (Low fuel line pressure) Turn the ignition switch off. Inspect fuel line pressure while engine running. (See FUEL LINE PRESSURE INSPECTION .) Is fuel line pressure within 420-460 kPa {4.3-4.6 kgf/cm ² , 61-66 psi} ?	Yes	Go to step 14.
10		No	Go to the next step.
11	INSPECT FUEL PUMP MAXIMUM PRESSURE Perform fuel pump maximum pressure test. (See FUEL PUMP UNIT INSPECTION .) Is fuel pump maximum pressure within 590-800 kPa {6.1-8.1 kgf/cm ² , 86-116 psi} ?	Yes	Go to the next step.
11		No	Inspect fuel pump circuit for open or poor connection. Repair or replace suspected circuit. If circuit is okay, replace fuel pump. Then go to Step 14.
12	INSPECT FUEL LINE FROM FUEL PUMP TO FUEL DELIVERY PIPE Visually inspect fuel line for any leakage. Is any fuel leakage found?	Yes	Replace suspected fuel line, then go to Step 14.
12		No	Inspect fuel filters for follows: Restriction or clogging at fuel filter (high-pressure side) Foreign materials or stain inside fuel filter (low-pressure side) Perform following actions as result. If restriction or clogging is found at fuel filter (high-pressure side), replace fuel filter. If foreign materials or stain is found inside fuel filter (low-pressure side), clean of fuel tank and filter. If all items above are okay, replace pressure regulator. Then go to Step 14
13	INSPECT SEALING OF ENGINE COOLANT PASSAGE WARNING: Removing radiator cap when radiator is hot Is dangerous. Scalding coolant and steam may shoot out and cause serious injury. When removing radiator cap, wrap a thick cloth around and turn it slowly. Remove radiator cap. Implement procedure to bleed air from engine coolant, then run engine at idle. Is there any small bubble, which makes engine coolant white at filling opening? NOTE: Large bubbles are normal since they are remaining air coming out from engine coolant passage.	Yes	Air gets in from poor sealing on head gasket or other areas between combustion chamber and engine coolant passage. Repair or replace faulty parts, then go to the next step.
13		No	Go to the next step.
14	VERIFY TROUBLESHOOTING OF DTC P0133 or P0153 COMPLETED Make sure to reconnect all disconnected connectors. Turn key to ON (Engine off). Clear the DTC from the memory using the WDS or equivalent. Start engine. Run DRIVE MODE 1 and 3. (See OBD-II DRIVE MODE .) Stop vehicle and access ON BOARD SYSTEM READINESS TEST to inspect DRIVE MODE completion status. Verify RFC changes to YES for OXYGEN SENSOR. If not, run DRIVE MODE again. Access DIAGNOSTIC MONITORING TEST RESULTS. Verify following TEST # values: (See DIAGNOSTIC MONITORING TEST RESULTS ACCESS PROCEDURE .) ForP0133: 10: 01: 05 (front HO2S (RH) rich-to-lean response time) 10: 01: 06 (front HO2S (RH) lean-to-rich response time) 10: 01: 0A (front HO2S (RH) inversion time) ForP0153: 10: 05: 05 (front HO2S (LH) rich-to-lean response time) 10: 05: 06 (front HO2S (LH) lean-to-rich response time) 10: 05: 0A (front HO2S (LH) inversion time) Are they all below MAX value?	Yes	Replace PCM, then go to the next step.
14		No	Go to the next step.
15	VERIFY AFTER REPAIR PROCEDURE Perform the "After Repair Procedure". (See AFTER REPAIR PROCEDURE .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE .)
15		No	Troubleshooting completed.