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To replace the fuel injectors on a 1991 Nissan Stanza, first disconnect the negative battery terminal and relieve the fuel system pressure by removing the fuel pump fuse and running the engine until it stalls. Next, remove the intake manifold and fuel rail to access the injectors. Carefully remove the old injectors from the fuel rail, apply a small amount of engine oil to the O-rings of the new injectors, and install them. Finally, reassemble the fuel rail, intake manifold, reconnect the battery, and check for leaks before starting the engine.

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2mo ago

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