Chery Automobile Co., Ltd.
09 - SQR484F EMISSION CONTROL SYSTEM
09–4
09
Oxygen sensor consists of upstream oxygen sensor and downstream oxygen sensor. Upstream oxygen
sensor is installed on the upper part of precatalytic converter assembly, and downstream oxygen sensor is
installed on the lower part of precatalytic converter assembly. The oxygen sensor can detect the oxygen
content in exhaust gas, and determine whether combustible air-fuel mixture is completely burnt out or not, so
as to guarantee the maximum efficiency of catalyst assembly in converting the HC, CO and NOx in exhaust
gas.
Specifications
Torque Specifications
Tool
General Tool
Description Torque (N·m)
Activated Charcoal Canister Solenoid Valve Bracket
Fixing Bolt
7 ± 1
Coupling Bolt Between Activated Charcoal Canister
Assembly and Body
7 ± 1
Exhaust Manifold Heat Insulator Fixing Bolt 23 ± 2
Upstream Oxygen Sensor 40 - 60
Downstream Oxygen Sensor 40 - 60
Digital Multimeter
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