Intention of troubleshooting procedure

WARNING: This page is about a different variant/trim than selected.

Step 1-2
- Perform inspection of HO2S and A/F sensor signal related parts.
Step 3
- Perform a fuel injector control system inspection.
Step 4
- Perform a purge control system inspection.
Step 5-6
- Perform inspection of fuel line.
Step 7-12
- Perform inspection of each separate part.
Repair completion verification
- Verify that the primary malfunction is resolved and there are no other malfunctions.

P2097-00: (PCM - VIN Y) TROUBLESHOOTING DIAGNOSTIC PROCEDURE

Step	Inspection	Results	Action
1	PURPOSE: VERIFY IF HO2S IS INSTALLED CORRECTLY Verify the HO2S installation condition. (Refer to HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION (VIN Y) in the service information.) Is the installation condition normal?	Yes	Go to the next step.
1		No	Correctly install the HO2S and perform the repair completion verification 1. (Refer to HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION (VIN Y) in the service information.)
2	PURPOSE: VERIFY IF A/F SENSOR IS INSTALLED CORRECTLY Verify the A/F sensor installation condition. (Refer to AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION (VIN Y) in the service information.) Is the installation condition normal?	Yes	Replace the A/F sensor and/or HO2S and perform the repair completion verification 1. (Refer to AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION (VIN Y) in the service information.) (Refer to HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION (VIN Y) in the service information.)
2		No	Correctly install the A/F sensor and perform the repair completion verification 1. (Refer to AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION (VIN Y) in the service information.)
3	PURPOSE: INSPECT FUEL INJECTOR OPERATION In Step 10 of the function inspection using the M-MDS, perform a fail-safe injector operation inspection on the cylinders in which engine speed fluctuation could not be verified. (Refer to FUEL INJECTOR INSPECTION (VIN Y) in the service information.) Is there any malfunction?	Yes	Repair or replace the malfunctioning location and perform the repair completion verification 1. (Refer to FUEL INJECTOR REMOVAL/INSTALLATION (VIN Y) in the service information.)
3		No	Go to the next step.
4	PURPOSE: INSPECT PURGE SOLENOID VALVE FOR MALFUNCTION Inspect the applicable part. (Refer to PURGE SOLENOID VALVE INSPECTION (VIN Y) in the service information.) Is the part normal?	Yes	Go to the next step.
4		No	Repair or replace the malfunctioning location and perform the repair completion verification 1. (Refer to PURGE SOLENOID VALVE REMOVAL/INSTALLATION (VIN Y) in the service information.)
5	PURPOSE: VERIFY IF MALFUNCTION RELATED TO FUEL LEAK FROM FUEL SYSTEM AFFECTS DIAGNOSTIC RESULTS Visually inspect for leakage from fuel line between fuel distributor and fuel pump. Is there any leakage?	Yes	Repair or replace the malfunctioning location and perform the repair completion verification 1.
5		No	Go to the next step.
6	PURPOSE: INSPECT FUEL LINE (LOW-SIDE) Inspect for leakage or restriction in the fuel line (low-side). Is there any malfunction?	Yes	Repair or replace the malfunctioning location and perform the repair completion verification 1.
6		No	Go to the next step.
7	PURPOSE: VERIFY IF HO2S IS INSTALLED CORRECTLY Verify the HO2S installation condition. (Refer to HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION (VIN Y) in the service information.) Is the installation condition normal?	Yes	Go to the next step.
7		No	Correctly install the HO2S and perform the repair completion verification 1. (Refer to HEATED OXYGEN SENSOR (HO2S) REMOVAL/INSTALLATION (VIN Y) in the service information.)
8	PURPOSE: VERIFY IF A/F SENSOR IS INSTALLED CORRECTLY Verify the A/F sensor installation condition. (Refer to AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION (VIN Y) in the service information.) Is the installation condition normal?	Yes	Go to the next step.
8		No	Correctly install the A/F sensor and perform the repair completion verification 1. (Refer to AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION (VIN Y) in the service information.)
9	PURPOSE: INSPECT EXHAUST SYSTEM FOR LEAKAGE Verify the exhaust gas leakage from the exhaust system. (between A/F sensor and HO2S) Is there any malfunction?	Yes	Repair or replace the malfunctioning location and perform the repair completion verification 1.
9		No	Go to the next step.
10	PURPOSE: INSPECT MAP SENSOR FOR MALFUNCTION Inspect the applicable part. (Refer to MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR INSPECTION (VIN Y) in the service information.) Is the part normal?	Yes	Go to the next step.
10		No	Repair or replace the malfunctioning location and perform the repair completion verification 1. (Refer to MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 2 REMOVAL/INSTALLATION (VIN Y) in the service information.)
11	PURPOSE: INSPECT MAF SENSOR FOR MALFUNCTION Inspect the applicable part. (Refer to MASS AIR FLOW (MAF) SENSOR INSPECTION (VIN Y) .) Is the part normal?	Yes	Go to the next step.
11		No	Repair or replace the malfunctioning location and perform the repair completion verification 1. (Refer to MASS AIR FLOW (MAF) SENSOR/INTAKE AIR TEMPERATURE (IAT) SENSOR NO. 1 REMOVAL/INSTALLATION (VIN Y) .)
12	PURPOSE: INSPECT AIR CLEANER ELEMENT FOR MALFUNCTION Remove the air cleaner element with the engine is running. (Refer to AIR CLEANER ELEMENT REMOVAL/INSTALLATION (VIN Y) in the service information.) Does the engine speed increase?	Yes	Inspect the air cleaner element. (Refer to AIR CLEANER ELEMENT INSPECTION (VIN Y) in the service information.) If there is any malfunction: Clean or replace the air cleaner element and perform the repair completion verification 1. (Refer to AIR CLEANER ELEMENT REMOVAL/INSTALLATION (VIN Y) in the service information.) If there is no malfunction: Go to repair completion verification 1.
12		No	Go to the next step.
Repair completion verification 1	PURPOSE: VERIFY THAT VEHICLE IS REPAIRED Install/connect the part removed/disconnected during the troubleshooting procedure. Clear the DTC recorded in the memory. (see CLEARING DTC .) Replicate the vehicle conditions at the time the DTC was detected using the following procedure. Implement the repeatability verification procedure. (See REPEATABILITY VERIFICATION PROCEDURE .) Perform the DTC inspection for the PCM. (See DTC INSPECTION .) Is the same Pending DTC present?	Yes	Refer to the controller area network (CAN) malfunction diagnosis flow to inspect for a CAN communication error. (See MALFUNCTION DIAGNOSIS FLOW [CONTROLLER AREA NETWORK (CAN)] .) If the CAN communication is normal, perform the diagnosis from Step 1. If the malfunction recurs, replace the PCM, then go to the next step. (Refer to applicable PCM REMOVAL/INSTALLATION (VIN Y) in the service information.)
Repair completion verification 1		No	Go to the next step.
Repair completion verification 2	PURPOSE: VERIFY IF OTHER DTCs DISPLAYED Perform the DTC inspection. (See DTC INSPECTION .) Are any other DTCs displayed?	Yes	Repair or replace the malfunctioning location according to the applicable DTC troubleshooting.
Repair completion verification 2		No	DTC troubleshooting completed.