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EVAP System Test

NOTE: This can be used as an alternative to Drive mode 4.
  1. Connect scan tool. Select startup. Select metric. Check PIDs. Ensure BARO (72.2 kPa or more), ECT (-7.5-70°C), FLT V (1.1-3.0 volts) and IAT (0-60°C) are as specified. Ensure IAT and ECT are within 10°C.
  2. Start engine. Run engine at 3500 RPM for 3.5 minutes. Select DIAGNOSTIC SUPPORT PROCEDURE, SINGLE TEST, EVAP LEAK TEST. Press trigger. Engine spped should raise to 2000 RPM. After one minute, depress accelerator to end test. Check and record FTP1SV and FTP2SV PIDs. Check FTP1SV PID value. See Fig 1 . If PID is okay, go to next step. If PID is not within specification, a large leak is present. See DTC P0455.
    Fig 1: FTP1SV Specification
    G99I54690Courtesy of MAZDA MOTORS CORP.
  3. Subtract FTP1SV from FTP2SV. Check specification. See Fig 2 . If specification is okay, test is complete. If specification is not within specification, a small leak is present. See DTC P0442.
    Fig 2: FTP2SV Minus FTP1SV Specification
    G99J54691Courtesy of MAZDA MOTORS CORP.
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