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.
Gas Mass Sensor/Mixture Control Valve
2004 Oldsmobile Bravada RWDSECTION Gas Mass Sensor/Mixture Control Valve
WARNING: This page is about a different car, the 2002 Pontiac Sunfire and 2002 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
- Gas Mass Sensor/Mixture Control Valve (GMS/MCV) is located on Gas Distribution Adapter (GDA). See Figure. Turn ignition off. Disconnect negative battery cable. Disconnect GMS/MCV electrical connectors. Remove throttle cables from retaining clip. Loosen hose clamp at outlet of GMS/MCV. Remove 4 screws from GMS/MCV inlet. Remove GMS/MCV bracket attaching nuts from isolators and remove GMS/MCV and bracket from CNG fuel module assembly bracket. Remove GMS/MCV from bracket.
- Install GMS/MCV to bracket. To complete installation, reverse removal procedure. Tighten all components to specification. See TORQUE SPECIFICATIONS .
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.