Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSPONTIAC2006WAVE BASE, 4D SEDAN, Y4M/MLMREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - 1.6L (L91) - DTC P0420 TO DTC P2076DTC P1134CONDITIONS FOR RUNNING THE DTC
2006 Pontiac Wave Base, 4D Sedan, Y4M/MLM
Conditions for Running the DTC
2006 Pontiac Wave Base, 4D Sedan, Y4M/MLMSECTION Conditions for Running the DTC
- DTCs P0131, P0132, P0134, P1166, and P2297 are not set.
- The calculated airflow into the engine is between 9-40 g/s.
- The engine speed is between 1,500-3,000 RPM.
- The engine coolant temperature is greater than 70°C (158°F).
- The ignition 1 voltage is greater than 10 volts.
- The fuel system is in Closed Loop.
- The engine has been operating for 60 seconds.
- The evaporative emissions (EVAP) purge is less than 20 percent.
- The DTC runs continuously when the above conditions are met for 2 seconds.
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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.