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Detonation knock sensor removed from an Opel Astra G 1.2 16V donor vehicle (1998–2009). This sensor detects pre-ignition knock in the engine and sends feedback to the ECU to prevent damage by adjusting ignition timing. OEM code 0261231120. Verify fitment against your original unit's connector type and mounting before ordering.
Detonation knock sensor removed from an Opel Astra G 1.2 16V donor vehicle (1998–2009). This sensor detects pre-ignition knock in the engine and sends feedback to the ECU to prevent damage by adjusting ignition timing. OEM code 0261231120. Verify fitment against your original unit's connector type and mounting before ordering.
