Suzuki 2000 Grand Vitara SQ625 Service Manual page 574

G16 Engine
J20 Engine
ENGINE AND EMISSION CONTROL SYSTEM (G16 / J20 ENGINES) 6E1-37
Installation
Reverse removal procedure noting the following.
D Clean mating surfaces of sensor and intake manifold.
D Check O-ring for damage and replace if necessary.
D Tighten ECT sensor to specified torque.
Tightening Torque
.
(a): 15 N m (1.5 kg-m, 11.0 lb-ft)
D Connect coupler to sensor securely.
D Refill cooling system.
HEATED OXYGEN SENSOR-1 and -2
(HO2S-1 and HO2S-2)
Oxygen Sensor-1 Inspection
Inspect oxygen sensor and its circuit referring to "DTC P0130 Diag.
Flow Table" in "Engine Diagnosis" section. If malfunction is found,
replace.
Oxygen Sensor Heater Inspection (Sensor-1 and -2)
1) Disconnect oxygen sensor coupler (1).
2) Using ohmmeter, measure resistance between terminals "V
and "GND" of sensor coupler.
NOTE:
Temperature of sensor affects resistance value largely.
Make sure that sensor heater is at correct temperature.
Resistance of oxygen sensor heater:
11.7 – 14.3 W (at 20_C, 68_F) for HO2S-2
4.5 – 5.7 W (at 20_C, 68_F) for HO2S-1
If found faulty, replace oxygen sensor.
3) Connect oxygen sensor coupler securely.
"
B