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 704 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 2.4L - DTC P0010 TO DTC P0366)DTC P0341 OR P0366CIRCUIT/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 2008 Pontiac G5 and 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- With the ignition OFF, inspect the engine wiring harnesses carrying the CMP sensor circuits for the following conditions:
- Close routing of aftermarket electrical equipment
- Close to solenoids, motors, and relays
Correct any wire harness routing or component placement conditions, if it is determined to be a possible source of electrical interference.
- With the ignition ON, engine OFF, use the live plot function on the scan tool. Select the engine speed parameter and the CMP sensor parameter. Change the minimum spec to 400 RPM for both parameters. Change the maximum spec to 4,000 RPM for both parameters.
- Start the engine and observe the scan tool.
- Quickly accelerate and release the accelerator pedal several times. Do not accelerate past 4,000 RPM. The 2 graphed lines on the live plot display should track together across the screen.
- Operate the vehicle within the Conditions for Running the DTC. 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.