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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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1 | Oxidation catalytic converter
2 | Exhaust gas pressure pipe
3 | Exhaust gas pressure sensor
4 | Exhaust gas pressure before passing diesel particulate filter
5 | Exhaust gas pressure after passing diesel particulate filter
6 | 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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1 | Exhaust gas pressure sensor
2 | Exhaust gas pressure sensor output voltage characteristic
3 | Difference in exhaust gas pressures
4 | Output voltage
5 | High
6 | Low
7 | Large
8 | Small