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Home >> Infiniti >> 2003 >> G35 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0171 Or DTC P0174 >> DTC Confirmation Test (Using Generic Scan Tool)

DTC Confirmation Test (Using Generic Scan Tool)

NOTE: If a DTC confirmation test has been previously performed, turn ignition off and wait at least 10 seconds before performing next DTC confirmation test.
  1. Start engine and warm to normal operating temperature.
  2. Turn ignition off and wait at least 10 seconds.
  3. Disconnect MAF sensor harness connector F25. Start engine and let it idle for at least 10 seconds.
  4. Turn ignition off and reconnect MAF sensor harness connector F25.
  5. Using scan tool, select MODE 3, and ensure 1st trip DTC P0102 is detected.
  6. Select MODE 4 and erase DTC P0102. See CLEARING DIAGNOSTIC TROUBLE CODES  under SELF-DIAGNOSTIC SYSTEM.
  7. Start engine and let it idle for at least 10 minutes.
  8. Select MODE 7. If 1st trip DTC P0171 or P0174 is detected, go to DIAGNOSTIC PROCEDURE  . If 1st trip DTC P0171 or P0174 is not detected, go to next step.
  9. If it is difficult to start engine, fuel injection system has a malfunction. Attempt to start engine while depressing accelerator pedal. If engine starts, go to DIAGNOSTIC PROCEDURE  . If engine does not start, visually check for intake and exhaust leaks.
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