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 MANUALSCHEVROLET2008HHR LT, 2.4 P, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 196 (VTEC SYSTEM)
2008 Chevrolet HHR LT, 2.4 P, Automatic
Section 196 (VTEC System)
2008 Chevrolet HHR LT, 2.4 P, AutomaticSECTION Section 196 (VTEC System)
WARNING: This page is about a different car, the 2011 Honda Insight and 2010 Honda Insight. However, it is still accessible from the selected car via links, so may be relevant.
- Component Location Index
- DTC Troubleshooting
- DTC P0522: Rocker Arm Oil Pressure Sensor A Low Voltage
- DTC P0523: Rocker Arm Oil Pressure Sensor A High Voltage
- DTC P055B: Rocker Arm Oil Pressure Sensor A Stuck High; DTC P1286: Rocker Arm Oil Pressure Sensor B Stuck Low; DTC P128A: Rocker Arm Oil Pressure Sensor B Stuck High; DTC P128C: Rocker Arm Oil Pressure Sensor A Stuck Low; DTC P128D: Rocker Arm Oil Pressure Sensor A Stuck High; DTC P2646: Rocker Arm Oil Control Valve A Stuck ON/OFF; DTC P3400: Valve Pause System (VPS) Stuck OFF
- DTC P055C: Rocker Arm Oil Pressure Sensor B Low Voltage
- DTC P055D: Rocker Arm Oil Pressure Sensor B High Voltage
- DTC P2648: Rocker Arm Oil Control Solenoid A Circuit Low Voltage
- DTC P2649: Rocker Arm Oil Control Solenoid A Circuit High Voltage
- DTC P2653: Rocker Arm Oil Control Solenoid B Circuit Low Voltage
- DTC P2654: Rocker Arm Oil Control Solenoid B Circuit High Voltage
- Rocker Arm Oil Control Valve Removal/Installation
- Rocker Arm Oil Pressure Sensor A Removal/Installation
- Rocker Arm Oil Pressure Sensor B Removal/Installation
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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.