Heated Oxygen Sensor Replacement - Bank 1 Sensor 2 - Suzuki XL7 2007 Service Manual

1C-12 Engine Electrical Devices:
Installation Procedure
NOTE
A special anti-seize compound is used in the
HO2S threads. The compound consists of
liquid graphite and glass beads. The graphite
tends to burn away, but the glass beads
remain, making the sensor easier to remove.
New, or service replacement sensors already
have the compound applied to the threads. If
the sensor is removed from an exhaust
component and if for any reason the sensor
is to reinstalled, the threads must have anti-
seize compound applied before the
reinstallation.
1. If reinstalling the old sensor, coat the threads with
anti-seize compound GM P/N 12377953, or
equivalent.
CAUTION
!
Refer to "Fastener Notice: ".
2. Install the HO2S (1) to the exhaust manifold.
Tightening torque
Tighten the sensor to 42 N⋅m (31 lb ft).
3. Connect the engine wiring harness electrical
connector (3) to the HO2S electrical connector (2).
4. Install the HO2S electrical connector retainer to the
camshaft cover.
5. Install the fuel injector sight shield, if necessary.
Refer to "Fuel Injector Sight Shield Replacement: ".
Heated Oxygen Sensor Replacement - Bank
1 Sensor 2
Removal Procedure
CAUTION
!
Do not remove the pigtail from either the
heated oxygen sensor (HO2S) or the oxygen
sensor (O2S). Removing the pigtail or the
connector will affect sensor operation.
Handle the oxygen sensor carefully. Do not
drop the HO2S. Keep the in-line electrical
connector and the louvered end free of
grease, dirt, or other contaminants. Do not
use cleaning solvents of any type.
Do not repair the wiring, connector or
terminals. Replace the oxygen sensor if the
pigtail wiring, connector, or terminal is
damaged.
This external clean air reference is obtained
by way of the oxygen sensor signal and
heater wires. Any attempt to repair the wires,
connectors, or terminals could result in the
obstruction of the air reference and degraded
sensor performance.
The following guidelines should be used
when servicing the heated oxygen sensor: