ENGINE AND EMISSION CONTROL SYSTEM (G16/J20 ENGINES) 6E1-45
INSTALLATION
Reverse removal procedure noting the following.
• Clean mating surfaces of sensor and intake manifold.
• Check O-ring for damage and replace if necessary.
• Tighten ECT sensor to specified torque.
Tightening torque
ECT sensor
(a) : 15 N·m (1.5 kg-m, 11.0 lb-ft)
• Connect coupler to sensor securely.
• 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 Section 6. 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
B
” and “GND” of sensor coupler.
If found faulty, replace oxygen sensor.
Resistance of oxygen sensor heater
11.7 – 14.3
Ω
(at 20°C, 68°F) for HO2S-2
4.5 – 5.7
Ω
(at 20°C, 68°F) for HO2S-1
3) Connect oxygen sensor coupler securely.
[A] : G16 Engine
[B] : J20 Engine
NOTE:
Temperature of sensor affects resistance value largely.
Make sure that sensor heater is at correct temperature.
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