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1/2 DOWNSTREAM The downstream heated oxygen sensor threads into 1. After removing the sensor, the exhaust manifold threads must be cleaned with an 18 mm X 1.5 + T 771-64 or equivalent. New sensors have compound on the threads and do not require an 2. Install sensor using an oxygen sensor crow foot wrench such as Snap-On tool YA8875 or equiva- 3. Connect sensor electrical harness to clips along body. 4. Connect electrical connector to sensor. 5. Lower vehicle. 6. Install the negative battery cable. PM FUEL INJECTION 14 - 77 |