Engine Emission Control
- Specifications
- Description and Operation
- Diagnosis and Testing
- Notes
- Diagnostic Trouble Codes
- Connector Views
- Pinpoint Test
- PINPOINT TEST A: Differential Pressure Feedback EGR Sensor Circuit Low Voltage Detected-P1400
- Ca1: Measure The VREF Voltage At DPFE Sensor Vehicle Harness Connector
- A2: Check DPFE Signal Circuit For Shorts To Ground
- A3: Check For Continuity Between The DPFE Sensor Electrical Connector And The Pcm Harness Electrical Connector
- A4: Check The VREF Circuit Continuity Between The DPFE Sensor Electrical Connector And The Pcm Harness Electrical Connector
- A5: Check The VREF Circuit Between The DPFE Sensor Electrical Connector And The Pcm Harness Electrical Connector For Short To Ground
- A6: Check The DPFE Circuit For Ground Supply
- PINPOINT TEST B: Differential Pressure Feedback EGR Sensor Circuit High Voltage Detected-P1401
- B1: Measure The VREF Voltage At The DPFE Sensor Vehicle Harness Connector
- B2: Check The DPFE Signal Circuit For Shorts To Ground
- B3: Check The DPFE Signal Circuit Continuity Between The DPFE Sensor Electrical Connector And The Pcm Harness Electrical Connector
- B4: Check The VREF Circuit Continuity Between The DPFE Sensor Electrical Connector And The Pcm Harness Electrical Connector
- B5: Check The VREF Circuit Between The DPFE Sensor Electrical Connector And The Pcm Harness Electrical Connector For Short To Ground
- B6: Check The DPFE Circuit For Ground Supply
- PINPOINT TEST C: EVR Control Circuit Malfunction-P1409
- C1: Check The Voltage Supply To The EGR Vacuum Regulator
- C2: Check The Voltage Supply To The EGR Vacuum Regulator
- C3: Check The Voltage Supply To The EGR Vacuum Regulator
- C4: Check The Ground Supply/Signal To The EGR Vacuum Regulator
- C5: Check The Continuity Of The Signal To The EGR Vacuum Regulator
- C6: Check The Signal To The EGR Vacuum Regulator For Short To Ground
- PINPOINT TEST A: Differential Pressure Feedback EGR Sensor Circuit Low Voltage Detected-P1400
- Removal and Installation