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Home >> Mazda >> 2022 >> CX-5 S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (On-Board Diagnostic - Engine Control System (VIN Y) (4 Of 7)) >> DTC P0401-00: EGR Flow Insufficient Detected >> Repeatability Verification Procedure

Repeatability Verification Procedure

WARNING: This page is about a different variant/trim than selected.
CAUTION:
  • When the M-MDS is used to observe monitor system status while driving, be sure to have another technician with you, or record the data in the M-MDS using the PID/DATA MONITOR AND RECORD capturing function and inspect later.
  • While performing this step, always operate the vehicle in a safe and lawful manner.
  1. Start the engine and warm it up until the engine coolant temperature exceeds 80 °C {176 °F}.
  2. Start the engine, race it at 4, 000 rpm, and idle it.
  3. Repeat Step  2 operation above 2 times.
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