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 SYSTEMSKNOCK SENSORTESTING AND INSPECTION
2002 Infiniti G20 L4-2.0L (SR20DE)
Knock Sensor: Testing and Inspection
2002 Infiniti G20 L4-2.0L (SR20DE)SECTION Testing and Inspection
Component Inspection
KNOCK SENSOR
- Use an ohmmeter which can measure more than 10 MOhm.
1. Disconnect knock sensor harness connector.
2. Check resistance between terminal 1 and ground.
Resistance: 500 - 620 kOhm [at 20 °C (68 °F)]
CAUTION: Discard any knock sensors that have been dropped or physically damaged. Use only new ones.
KNOCK SENSOR
- Use an ohmmeter which can measure more than 10 MOhm.
1. Disconnect knock sensor harness connector.
2. Check resistance between terminal 1 and ground.
Resistance: 500 - 620 kOhm [at 20 °C (68 °F)]
CAUTION: Discard any knock sensors that have been dropped or physically damaged. Use only new ones.
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.