- The ECM checks the EVAP VSV "stuck closed" by commanding the EVAP VSV to open with the CCV closed. If a high negative pressure is not developed in the fuel tank, the ECM determines that the EVAP VSV remains closed. The ECM will turn on the MIL and set a DTC.
- The ECM checks the EVAP VSV "stuck open" by commanding both the valves (EVAP VSV and CCV) to close when the fuel tank is at atmospheric pressure. If the fuel tank develops a high negative pressure at the early stage of this test, the ECM determines that the EVAP VSV is stuck open. The ECM will turn on the MIL and set a DTC.
Contents
Section: Testing & Diagnostics- Engine Controls - Diagnostics: Overview
- Engine Controls - Diagnostics: Diagnosis
- Engine Controls - Diagnostics: Wiring
- Engine Controls - Diagnostics: NVH
- Engine Controls - Diagnostics: Other
- DTC P0031: Oxygen (A/F) Sensor Heater Control Circuit Low (Bank 1 Sensor 1), DTC P0032: Oxygen (A/F) Sensor Heater Control Circuit High (Bank 1 Sensor 1)
- P0031
- P0032
- P0037
- P0038
- P0037 (2)
- P0038 (2)
- P0100
- P0102
- P0103
- P0110
- P0112
- P0113
- P0115
- P0117
- P0118
- DTC P0120: Throttle/Pedal Position Sensor/Switch "A" Circuit Malfunction, DTC P0122: Throttle/Pedal Position Sensor/Switch "A" Circuit Low Input, DTC P0123: Throttle/Pedal Position Sensor/Switch "A" Circuit High Input, DTC P0220: Throttle/Pedal Position Sensor/Switch "B" Circuit Malfunction, DTC P0222: Throttle/Pedal Position Sensor/Switch "B" Circuit Low Input, DTC P0223: Throttle/Pedal Position Sensor/Switch "B" Circuit High Input, DTC P2135: Throttle/Pedal Position Sensor/Switch "A"/"B" Voltage Correction
- P0120
- P0122
- P0123
- P0220
- P0222
- P0223
- P2135
- DTC P0121: Throttle/Pedal Position Sensor/Switch "A" Circuit Range/Performance Problem
- DTC P0128: Coolant Thermostat (Coolant Temperature Below Thermostat Regulating Temperature)
- P0301 to P0304
- P0335
- P0335 (2)
- P0335 (3)
- DTC P0351: Ignition Coil "A" Primary/Secondary Circuit, DTC P0352: Ignition Coil "B" Primary/Secondary Circuit, DTC P0353: Ignition Coil "C" Primary/Secondary Circuit, DTC P0354: Ignition Coil "D" Primary/Secondary Circuit
- P0441
- P0446
- P2418
- P0451
- P0452 and P0453
- P2102
- P2103
- P2102 (2)
- P2103 (2)
- DTC P2120: Throttle/Pedal Position Sensor/Switch "D" Circuit, DTC P2122: Throttle/Pedal Position Sensor/Switch "D" Circuit Low Input, DTC P2123: Throttle/Pedal Position Sensor/Switch "D" Circuit High Input, DTC P2125: Throttle/Pedal Position Sensor/Switch "E" Circuit, DTC P2127: Throttle/Pedal Position Sensor/Switch "E" Circuit Low Input, DTC P2128: Throttle/Pedal Position Sensor/Switch "E" Circuit High Input, DTC P2138: Throttle/Pedal Position Sensor/Switch "D"/"E" Voltage Correlation
- P2120
- P2122
- P2123
- P2125
- P2127
- P2128
- P2138
- DTC P2121: Throttle/Pedal Position Sensor/Switch "D" Circuit Range/Performance
- DTC P2195: Oxygen (A/F) Sensor Signal Stuck Lean (Bank 1 Sensor 1), DTC P2196: Oxygen (A/F) Sensor Signal Stuck Rich (Bank 1 Sensor 1)
- DTC P2238: Oxygen Sensor Pumping Current Circuit Low (for A/F sensor) (Bank 1 Sensor 1), DTC P2239: Oxygen Sensor Pumping Current Circuit High (for A/F sensor) (Bank 1 Sensor 1), DTC P2252: Oxygen Sensor Pumping Ground Circuit Low (for A/F sensor) (Bank 1 Sensor 1), DTC P2253: Oxygen Sensor Pumping Ground Circuit High (for A/F sensor) (Bank 1 Sensor 1)
- Abbreviations
- Accessories Control Systems
- Accessory Drive Belts
- Airbag
- Anti-Lock/traction Control
- Automatic Trans
- Auxiliary Emission Control Systems
- Axle Shafts
- Basic Trouble Shooting
- Body, Cab Control Systems
- Brakes
- Cabin Air Filter
- Charging System
- Check Lists
- Clutches Manual & Hydraulic
- Communication Devices
- Computer Relearn
- Cooling Fan
- Cooling System (Mechanical)
- Cruise Control Systems
- Diagnostic Connector Locations
- Differentials & Drive Axles
- Door Locks & Anti-Theft Systems
- Drive Cycles
- Driveline/axles
- Driveshaft & Universal Joints
- DTC Index
- Electrical
- Electrical Component Locations
- Emission Applications
- Engine
- Engine Control Systems
- Engine Performance
- Entertainment Systems
- Exhaust
- Exterior Body Panels
- Exterior Lights
- Exterior/interior Trim
- Fuses & Circuit Breakers
- Gauges & Instrument Panels
- General Servicing - All Makes
- Heated Glass/defoggers
- Hoist/jack
- Horns
- Identification
- Ignition Switch/steering Lock
- Ignition System
- Interior/illumination Lights
- Lubrication System
- Manual & Power Steering
- Manual HVAC System
- Manual Trans
- Mechanical
- Mechanical - Hydraulic
- Metric Conversions
- Mirrors
- Mode 6
- Oem General Information
- Passive Restraints
- Reset Procedures
- Restraints
- Restraints Control Systems
- Seats
- Specifications
- Starter
- Steering
- Steering Column
- Sun Roof/t-Top/convertible Top
- Suspension Front
- Suspension Rear
- Testing & Diagnostics
- Traction Control Disable
- Transmission
- Wheel & Tire System
- Wheel Alignment
- Windows
- Wiper/washer Systems