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 859 (ENGINE CONTROLS AND FUEL - 2.2L - DTC P0351 TO DTC P2544)DTC P2430-P2433CIRCUIT/SYSTEM VERIFICATION
2006 Chevrolet Cobalt SS, 4D Sedan, Standard
Circuit/System Verification
2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Circuit/System Verification
WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, observe the diagnostic trouble code (DTC) information with a scan tool. Verify that DTC P0651 is not set.
- If DTC P0651 is set, refer to Diagnostic Trouble Code (DTC) List - Vehicle for further diagnosis.
- Compare the scan tool BARO pressure parameter to the Altitude Versus Barometric Pressure
table. The BARO should be within the specified range displayed in the table for the specific altitude.
- If not within the specified range, refer to DTC P0106 for further diagnosis.
- Compare the scan tool Air Pressure Sensor pressure parameter to the BARO reading. The readings should be within 3 kPa (0.4 psi).
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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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.