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 MANUALSINFINITI2002G20 L4-2.0L (SR20DE)REPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSCAMSHAFT POSITION SENSORTESTING AND INSPECTION
2002 Infiniti G20 L4-2.0L (SR20DE)
Camshaft Position Sensor: Testing and Inspection
2002 Infiniti G20 L4-2.0L (SR20DE)SECTION Testing and Inspection
Component Inspection
CAMSHAFT POSITION SENSOR
1. Start engine and warm it up to normal operating temperature.
2. Check voltage between ECM terminals 75, 85 and engine ground under the given conditions.
Terminal 75 and engine ground
Terminal 85 and engine ground
If NG, replace distributor assembly with camshaft position sensor.
CAMSHAFT POSITION SENSOR
1. Start engine and warm it up to normal operating temperature.
2. Check voltage between ECM terminals 75, 85 and engine ground under the given conditions.
Terminal 75 and engine ground
Terminal 85 and engine ground
If NG, replace distributor assembly with camshaft position sensor.
RENDER: 1.0x
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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.