For a 1997 Acura CL 2.2, the four-wire oxygen sensor typically has the following color coding: the two black wires are usually the heater wires, the white wire is the signal wire, and the gray wire is the ground. When cross-wiring, ensure that the signal wire connects to the corresponding vehicle harness wire for the oxygen sensor, and the heater wires are connected to the appropriate power source. Always refer to a service manual for specific wiring diagrams to avoid any potential issues.
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