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 MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 455 (ENGINE CONTROLS - 2.2L (L61) - DTC P0201 TO DTC P0651)DTC P0455CONDITIONS FOR SETTING THE DTC
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Conditions For Setting the DTC
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Conditions For Setting the DTC
WARNING: This page is about a different car, the 2006 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- If the FTP voltage is less than 3.0 volts during the DTC P0455 diagnostic test indicating a vacuum cannot be pulled on the EVAP system, DTC P0455 will set.
- The above condition exists for longer than 5 minutes and 30 seconds.
RENDER: 1.0x
NO RELATED
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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.