INSTALLATION
2.7L
NOTE: When replacing an O2 Sensor, the PCM
RAM memory must be cleared, either by discon-
necting the PCM C-1 connector or momentarily
disconnecting the Battery negative terminal. The
NGC learns the characteristics of each O2 heater
element and these old values should be cleared
when installing a new O2 sensor. The customer
may experience driveability issues if this is not
performed.
CAUTION: Never apply any type of grease to the
oxygen sensor electrical connector, or attempt any
soldering of the sensor wiring harness.
The engines uses two heated oxygen sensors, one in
each exhaust manifold.
1. After removing the sensor, the exhaust manifold
threads must be cleaned with an 18 mm X 1.5 +
6E tap. If reusing the original sensor, coat the sen-
sor threads with an anti-seize compound such as Loctite 771- 64 or equivalent. New sensors have compound on
the threads and do not require an additional coating. Tighten the sensor to 28 N·m (20 ft. lbs.) torque.
2. Connect the heated oxygen sensor electrical connector.
3. Lower vehicle.
4. Install the negative battery cable.
3.5L
NOTE: When replacing an O2 Sensor, the PCM
RAM memory must be cleared, either by discon-
necting the PCM C-1 connector or momentarily
disconnecting the Battery negative terminal. The
NGC learns the characteristics of each O2 heater
element and these old values should be cleared
when installing a new O2 sensor. The customer
may experience driveability issues if this is not
performed.
CAUTION: Never apply any type of grease to the
oxygen sensor electrical connector, or attempt any
soldering of the sensor wiring harness.
The engines uses two heated oxygen sensors, one in
each exhaust manifold.
1. After removing the sensor, the exhaust manifold
threads must be cleaned with an 18 mm X 1.5 +
6E tap. If reusing the original sensor, coat the sen-
sor threads with an anti-seize compound such as Loctite 771- 64 or equivalent. New sensors have compound on
the threads and do not require an additional coating. Tighten the sensor to 28 N·m (20 ft. lbs.) torque.
2. Connect the heated oxygen sensor electrical connector.
3. Lower vehicle.
4. Install the negative battery cable.
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FUEL INJECTION
LX