The exhaust emission control system is composed of the pair system, exhaust control system, ho2 sensor, threeway catalyst system and isc system. The fresh air is drawn into the exhaust ports through the pair control solenoid valve and pair reed valves. The pair control solenoid valve is operated by the ecm, which is controlled according to the signals from tps, ects, iaps and ckps. The exhaust gas flow is performed by the exhaust control valve actuator which is controlled by the ecm by changing the exhaust control valve angle. Isc valve adjusts the bypass air volume of the throttle body to control engine idling speed with various sensor signals by varying engine running conditions.
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Engine coolant solution
Use engine coolant that is com·
patible with an aluminum radiator,
mixed with distilled water at a
50:50 mixture ratio for engine
coolant solution. An engine coolant
mixture other than 50:50 can
affect cooling efficiency or rust
inhibiting performance.
Engine coolant
Engine coolant should b ...
DTC “c44” (p0130/p0135): ho2 sensor
(ho2s) circuit malfunction
Detected condition and possible cause
Detected condition
Possible cause
C44/P0130
Ho2 sensor output voltage is not input to
ecm during engine operation and running
condition.
Sensor voltage > 1.0 V
Ho2 sensor circuit is open or shorted to the po ...
Starter clutch inspection
Refer to “starter clutch removal and installation” .
Starter clutch
Install the starter driven gear onto the starter clutch.
Turn the starter driven gear by hand to inspect the
starter clutch for a smooth movement. The gear
turns in one direction only. If a large resistance is felt
...