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EP Sensor ?

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Old Jun 28, 2009 | 03:18 PM
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EP Sensor ?

Does the exhaust pressure sensor measure absolute pressure?
 
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Old Jun 28, 2009 | 03:41 PM
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From the PC/ED manual:

Exhaust Pressure (EP) Sensor
The EP sensor is a variable capacitor sensor that is supplied a 5-volt reference signal by the PCM and returns a linear analog voltage signal that indicates pressure. The EP sensor measures the pressure in the LH exhaust manifold. The sensor feedback signal is used for variable geometry turbo (VGT) and exhaust gas recirculation (EGR) valve control.

From this, I would assume it is gauge pressure.

 
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