Catalytic Converter System

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DTC Troubleshooting

DTC P0420: Catalyst System Efficiency Below Threshold NOTE: - Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see pa ...

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A/C Compressor Relief Valve Replacement
1. Recover the refrigerant with a recovery/recycling/charging station (see page 21-80). 2. Raise the vehicle on a lift. 3. Remove the relief valve (A) and the O-ring (B). Plug the opening to k ...

CMP Sensor A Replacement
1. Disconnect the CMP sensor A 3P connector (B). 2. Remove CMP sensor A from the intake camshaft side of the cylinder head. 3. Install the parts in the reverse order of removal with a new O-ri ...

In-car Temperature Sensor Test
NOTE: Before testing the sensor, check for HVAC DTCs (see page 21-101). 1. Remove the in-car temperature sensor (see page 21-184). 2. Test the in-car temperature sensor while holding it in fr ...