1-10 Warnings and Notices 1 General Special precautions for heated oxygen sensor and oxygen sensor CAUTION: - Do not remove the lead of the heated oxygen sensor. Removing the lead or harness connector will affect the operation of the sensor. - Please take the oxygen sensor carefully, do not drop it, and place it in a clean and tidy environment. - Do not use any kind of cleaning agent. - Do not repair oxygen sensor wires, harness connectors or terminals. If the lead, harness connector or terminal is damaged, the oxygen sensor must be replaced. - External clean air reference is obtained through signal and heater leads.
Repairing the leads, harness connectors or terminals will block the air reference channel and degrade the oxygen sensor performance. - When repairing a heated oxygen sensor, the following principles must be followed: ● Do not apply contact cleaner or other materials on the sensor or vehicle harness connector. These materials will enter the sensor and cause poor performance. ● Do not damage the sensor's leads and harnesses, resulting in exposure of its internal wires, which provides access for foreign matter to enter the sensor and cause performance failure. ● Do not bend or kink the leads of the sensor and vehicle, otherwise it will block the air reference channel.
● Ensure that the surrounding seal of the harness connector is intact to avoid damage caused by water ingress. Important precautions for setting the start switch to "OFF" position when disconnecting the battery CAUTION: - When connecting or disconnecting the battery cable, battery charger, or jumper cable, set the start switch to OFF. Otherwise, the control module or other electrical components may be damaged. Do not twist or bend the hose during installation CAUTION: - The inlet and outlet hoses shall not be twisted in the process of installation, and the hoses shall not be bent or deformed to facilitate installation, otherwise components may be damaged.
Important precautions for machining surface damage CAUTION: - Do not cut, scratch or damage the sealing surface. If the sealing surface is a machined surface, it may be damaged, resulting in leakage. Special precautions for power system control module and ESD CAUTION: - Do not touch the connector pins or welded parts on the circuit board to prevent electrostatic discharge from damaging the electronic control module on the vehicle. Important precautions for sealant CAUTION: - Do not let the room temperature curing sealant into the blind threaded hole.
Otherwise, the fastener will produce hydraulic locking effect during the fastening, which may cause damage to the fastener or other parts, and also make the fastener unable to get the correct clamping force, resulting in improper seal and leakage. The fasteners that are not properly tightened can loosen or separate parts and cause serious engine damage. VOYAH FREE