OBLIGATORIO A PARTIR DEL: 1 JULIO DE 2016
LB. 4 ALIMENTOS Y AGUA DE LOS ANIMALES
CHARCOAL CANISTER INSPECTION
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1. Remove the charcoal canister.
2. Plug the atmosphere side port and purge solenoid valve side port of the charcoal canister.
3. Blow air into the charcoal canister from the fuel tank side port and verify that there is no air leakage.
• If there is air leakage, replace the charcoal canister.
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EVAPORATIVE GAS CHECK VALVE (ONE-WAY) INSPECTION (L.H.D.)
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1. Remove the evaporative gas check valve (one-way).
2. Apply pressure to port A, and verify that there is no airflow.
• If there is airflow, replace the evaporative gas check valve (one-way).
3. Apply negative pressure to port A, and verify that there is air flow.
• If there is no airflow, replace the evaporative gas check valve (one-way).
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PURGE SOLENOID VALVE REMOVAL/INSTALLATION
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1. Disconnect the negative battery cable.
2. Remove in the order indicated in the table.
3. Install in the reverse order of removal.
Vacuum Hose Installation Note
1. Attach the vacuum hose onto the purge solenoid valve until it contacts the stopper.
Evaporative Hose Installation Note
EMISSION SYSTEM
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1 Evaporative hose (to charcoal canister) (See F38 Evaporative Hose Installation Note) 2 Vacuum hose (to intake manifold)
(See F38 Vacuum Hose Installation Note) 3 Purge solenoid valve
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EMISSION SYSTEM
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PURGE SOLENOID VALVE INSPECTION A6E391618740W02
Airflow Inspection
Note• Perform the following test only when directed.
1. Disconnect the negative battery cable.
2. Remove the purge solenoid valve. (See F38 PURGE SOLENOID VALVE REMOVAL/INSTALLATION.) 3. Inspect airflow between the ports under the following conditions.
• If not as specified, replace the purge solenoid valve.
• If as specified, carry out the Circuit Open/Short Inspection.
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See F43 PCM REMOVAL/INSTALLATION.) 2. Inspect the following wiring harness for open or
short (continuity check).
Open circuit
• If there is no continuity, the circuit is open.
Repair or replace the harness.
Purge solenoid valve terminal A (harness-side) and PCM terminal 4U
Purge solenoid valve terminal B
(harness-side) and main relay terminal C (harness-side)
Short circuit
• If there is continuity, the circuit is shorted.
Repair or replace the harness.
Purge solenoid valve terminal A (harness-side) and body GND
Purge solenoid valve terminal B (harness-side) and power supply End Of Sie
EGR VALVE REMOVAL/INSTALLATION A6E391620300W01
1. Disconnect the negative battery cable.
2. Disconnect the EGR valve connector.
3. Remove in the order indicated in the table.
4. Install in the reverse order of removal.
Water Hose Removal Note
• Drain the engine coolant. (See E3 ENGINE COOLANT REPLACEMENT.)
EGR Valve Removal Note
1. Remove the air hose. (See F10 INTAKE-AIR SYSTEM REMOVAL/INSTALLATION)
2. Remove the upper radiator hose. (See E6 RADIATOR REMOVAL/INSTALLATION.) End Of Sie
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1 Water hose
(See F39 Water Hose Removal Note) 2 EGR valve
(See F39 EGR Valve Removal Note)
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EMISSION SYSTEM
EGR VALVE INSPECTION A6E391620300W02
Operation Test
1. Carry out the EGR Control Inspection. (See F233 EGR Control System Inspection.
• If not as specified, perform the further inspection for the EGR valve.
Resistance Inspection
Note• Perform the following test only when directed.
1. Disconnect the negative battery cable.
2. Inspect resistance of the EGR valve coils.
• If not as specified, replace the EGR valve.
• If as specified, carry out the Circuit Open/
Short Inspection.
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See F43 PCM REMOVAL/INSTALLATION.) 2. Inspect the following wiring harness for open or
short (continuity check).
Open circuit
• If there is no continuity, the circuit is open.
Repair or replace the harness.
EGR valve terminal E (harness-side) and PCM terminal 4E
EGR valve terminal A (harness-side) and PCM terminal 4H
EGR valve terminal B (harness-side) and PCM terminal 4K
EGR valve terminal F (harness-side) and PCM terminal 4N
EGR valve terminal C or D (harness-side) and main relay terminal C (harness-side) Short circuit
• If there is continuity, the circuit is shorted. Repair or replace the harness.
EGR valve terminal E (harness-side) and GND
EGR valve terminal A (harness-side) and GND
EGR valve terminal B (harness-side) and GND
EGR valve terminal F (harness-side) and GND
EGR valve terminal C or D (harness-side) and power supply Terminals Resistance (ohms)
CECA DBDF
1216
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EMISSION SYSTEM
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PCV VALVE INSPECTION A6E391613890W01
1. Disconnect the negative battery cable.
2. Remove the intake maniforld.(see F10 INTAKE-AIR SYSTEM REMOVAL/INSTALLATION.) 3. Remove the PCV valve.
4. Blow through the valve and verify that air flows as specified.
• If not as specified, replace the PCV valve.
Specification
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THREE-WAY CATALYTIC CONVERTER (TWC) INSPECTION A6E391620500W01
Note• Make sure that no HO2S DTCs have been detected. If detected, this inspection is not applicable for TWC inspection.
1. Connect the WDS or equivalent and monitor PIDs as following.
• Monitor the right TWC using O2S11 PID for upstream HO2S and O2S12 PID for downstream HO2S.
2. Begin to monitor the appropriate PIDs.
3. Drive the vehicle for 10 min at 6596 km/h {4060 mph} to allow the front catalytic converter to reach operating temperature.
4. Stop the vehicle and leave it in a safe place.
5. Let the engine idle.
6. Record PIDs for 1 min.
7. Select the appropriate PIDs and read the graph.
8. Count the number of times (inversions) that the upstream HO2S graph line actually crosses the 0.5 V line.
9. Count the number of times (inversions) that the downstream HO2S graph line actually crosses the 0.5 V line.
Note• Do not count the number of peaks. Refer to the graph.
10. Using the following equation, calculate the value of ratio.
Equation
RATIO = Upstream HO2S inversion ÷÷÷÷ downstream HO2S inversion
• If the ratio is 5.5 or more or there is no downstream HO2S inversion, the TWC is functioning properly.
• If the ratio is less than 1.125, the TWC is not functioning properly. Replace the TWC.
Condition Airflow
Air applied from port A to B Yes Air applied from port B to A No
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EMISSION SYSTEM
Upstream HO2S graph line example
Downstream HO2S graph line example 1 Equation
RATIO = 30 inversions (upstream HO2S inversions) ÷÷÷÷ 5 inversions (downstream HO2S inversions) = 6.0 (good WU-TWC)
Downstream HO2S graph line example 2
Downstream HO2S graph line example 3 Equation
RATIO = 30 inversions (upstream HO2S inversions) ÷÷÷÷ 27 inversions (downstream HO2S inversions) = 1.1 (bad converter)
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