2016 Mazda 6 Grand TouringFACTORY OEM SERVICE PROCEDURE

Purge Control System Inspection

If simulation function of M-MDS is used: 

  1. Start the engine.
  2. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.5] .)
  3. Disconnect the vacuum hose between the purge solenoid valve and the charcoal canister.
  4. Put a finger to the purge solenoid valve and verify that there is no vacuum applied when the engine is cold.
  5. Connect the M-MDS to the DLC-2 and verify that DTC P0443:00 is displayed. (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.5] .)
  6. Select the EVAPCP simulation item.
  7. Increase the duty value of the purge solenoid valve to 50 %  and inspect if the operation sound of the valve is heard.
    • If the operation sound is heard, inspect for loose or damaged vacuum hoses. (Intake manifold-Purge solenoid valve-Charcoal canister)
    • If the operation sound is not heard, perform the purge solenoid valve inspection. (See PURGE SOLENOID VALVE INSPECTION [SKYACTIV-G 2.5] .)
  8. Warm up the engine to normal operating temperature.
  9. Monitor the EVAPCP PID using the M-MDS, and drive the vehicle approx. 2000  rpm for 30 s or more  . (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.5] .)
RELATED PID SPECIFICATIONS

Item (definition) Unit/Condition Definition Condition/Specification (Reference)
APP1 % APP sensor No. 1
  • Accelerator pedal released: Approx. 15%
  • Accelerator pedal depressed: Approx. 82%
V
  • Accelerator pedal released: Approx. 0.75 V
  • Accelerator pedal depressed: Approx. 4.1 V
APP2 % APP sensor No. 2
  • Accelerator pedal released: Approx. 7.45%
  • Accelerator pedal depressed: Approx. 41%
V
  • Accelerator pedal released: Approx. 0.38 V
  • Accelerator pedal depressed: Approx. 2.05 V
EVAPCP % Purge solenoid valve duty value
  • Idle (after warm up): Approx. 0%
  • Racing (Engine speed 2, 000 rpm): 4.3-35%
  • Racing (Engine speed 4, 000 rpm): Approx. 66%
MAF g/Sec Mass air flow
  • Displays MAF
V
  • Switch ignition ON (engine off) (MAF: 0.59 g/s {0.078 lb/min}): Approx. 0.72 V
  • Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): Approx. 0.86 V
  • Racing (engine speed is 2, 000 rpm) (MAF: 4.73 g/s {0.626 lb/min}): Approx. 1.07 V
LOAD % Engine load
  • Idle (after warm up): Approx. 17.64%
  • Racing (engine speed is 2, 000 rpm): Approx. 14.51%
  • Racing (engine speed is 4, 000 rpm): Approx. 21.17%
TP_REL % Throttle position signal (relative value)
  • Accelerator pedal released: Approx. 12%
  • Accelerator pedal depressed: Approx. 82%

If simulation function of M-MDS is not used: 

  1. Start the engine.
  2. Remove the plug hole plate. (See PLUG HOLE PLATE REMOVAL/INSTALLATION [SKYACTIV-G 2.5] .)
  3. Disconnect the vacuum hose between the purge solenoid valve and the charcoal canister.
  4. Put a finger to the purge solenoid valve and verify that there is no vacuum applied when the engine is cold.
  5. Set the vehicle on a dynamometer or chassis roller.
    WARNING:
    • When the dynamometer or chassis roller is operating, there is a possibility that the operator may come into contact with or be caught up in the rotating parts, leading to serious injuries or death. When performing work while the dynamometer or chassis roller is operating, be careful not to contact or be caught up in any of the rotating parts.
  6. Drive the vehicle at an engine speed to approx. 2000 rpm  for 30 s or more  .
  7. Put a finger to the purge solenoid valve and verify that there is no vacuum applied during Step 2.
RELATED PID SPECIFICATIONS

Item (definition) Unit/Condition Definition Condition/Specification (Reference)
APP1 % APP sensor No. 1
  • Accelerator pedal released: Approx. 15%
  • Accelerator pedal depressed: Approx. 82%
V
  • Accelerator pedal released: Approx. 0.75 V
  • Accelerator pedal depressed: Approx. 4.1 V
APP2 % APP sensor No. 2
  • Accelerator pedal released: Approx. 7.45%
  • Accelerator pedal depressed: Approx. 41%
V
  • Accelerator pedal released: Approx. 0.38 V
  • Accelerator pedal depressed: Approx. 2.05 V
ECT °C, °F Engine coolant temperature (No. 1)
  • Displays ECT
V
  • ECT is 20 °C {68 °F}: Approx. 3.10 V
  • ECT is 40 °C {104 °F}: Approx. 2.16 V
  • ECT is 60 °C {140 °F}: Approx. 1.40 V
  • ECT is 80 °C {176 °F}: Approx. 0.87 V
  • ECT is 100 °C {212 °F}: Approx. 0.54 V
MAF g/Sec Mass air flow
  • Displays MAF
V
  • Switch ignition ON (engine off) (MAF: 0.59 g/s {0.078 lb/min}): Approx. 0.72 V
  • Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): Approx. 0.86 V
  • Racing (engine speed is 2, 000 rpm) (MAF: 4.73 g/s {0.626 lb/min}): Approx. 1.07 V
LOAD % Engine load
  • Idle (after warm up): Approx. 17.64%
  • Racing (engine speed is 2, 000 rpm): Approx. 14.51%
  • Racing (engine speed is 4, 000 rpm): Approx. 21.17%
TP_REL % Throttle position signal (relative value)
  • Accelerator pedal released: Approx. 12%
  • Accelerator pedal depressed: Approx. 82%
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.