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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 260 (ENGINE CONTROLS - SELF-DIAGNOSTICS)DIAGNOSTIC TESTSDTC P0410: SECONDARY AIR INJECTION SYSTEMCONDITIONS FOR RUNNING DTC
1999 GMC Forward Control 5.7 R, Automatic

Conditions For Running DTC

1999 GMC Forward Control 5.7 R, AutomaticSECTION Conditions For Running DTC
WARNING: This page is about a different car, the 2003 Cadillac Seville and 2003 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0121, P0122, P0123, P0130, P0131, P0132, P0133, P0134, P0135, P0137, P0138, P0140, P0141, P0150, P0151, P0152, P0153, P0154, P0155, P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P0300, P0335, P0336, P0351, P0352, P0353, P0354, P0355, P0356, P0357, P0358, P0412, P0418, P0506, P0507, P1133, or P1134 are not set.

Passive Tests

  • The engine is running for more than 3 seconds.
  • The engine speed is more than 600 RPM.
  • The throttle is steady.
  • The engine load is less than 80 percent.
  • The system voltage is more than 10.5 volts.
  • The Mass Airflow (MAF) is less than 35 g/s.
  • The air/fuel ratio is more than 12.5:1.
  • The Engine Coolant Temperature (ECT) is 41-227°F (5-108.5°C).
  • The Intake Air Temperature (IAT) is 41-176°F (5-80°C).
  • The power enrichment, or Deceleration Fuel Cut-Off (DFCO) not active.

Active Tests

  • The engine is running for more than 3 seconds.
  • The engine speed is more than 600 RPM.
  • The throttle is steady.
  • The engine load is less than 80 percent.
  • The system voltage is more than 10.5 volts.
  • The MAF is less than 35 g/s.
  • The fuel system is in Closed Loop operation.
  • The EVAP purge is active.
  • The ECT is more than 154°F (68°C).
  • The vehicle speed is 25 and 35 MPH.
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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.