EXHAUST GAS PRESSURE SENSOR CONSTRUCTION/OPERATION [MZR-CD (RF Turbo)]

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•  Installed to the dash lower panel in the engine compartment together with the exhaust gas pressure correction temperature sensor.
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Oxidation catalytic converter
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Exhaust gas pressure pipe
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Exhaust gas pressure sensor
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Exhaust gas pressure before passing diesel particulate filter
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Exhaust gas pressure after passing diesel particulate filter
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Exhaust gas pressure correction temperature sensor

•  Converts the exhaust gas pressures before and after passing the diesel particulate filter to voltage signals and outputs them to the PCM.
•  A semiconductor type sensor has been adopted with a difference in electrical potential occurring when pressure is applied.
•  Output voltage from the exhaust gas pressure sensor increases as the difference in exhaust gas pressures increases.
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Exhaust gas pressure sensor
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Exhaust gas pressure sensor output voltage characteristic
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Difference in exhaust gas pressures
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Output voltage
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High
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Low
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Large
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Small