MKT FWD V6-3.7L (2010)
Pressure Feedback Exhaust Sensor: Description and Operation
ENGINE CONTROL COMPONENTS
Differential Pressure Feedback Exhaust Gas Recirculation (EGR) Sensor
The differential pressure feedback EGR sensor is a ceramic, capacitive-type pressure transducer that monitors the differential pressure across a
metering orifice located in the orifice tube assembly. The differential pressure feedback EGR sensor receives this signal through 2 hoses referred to as
the downstream pressure hose (REF SIGNAL) and upstream pressure hose (HI SIGNAL). The HI and REF hose connections are marked on the
differential pressure feedback EGR sensor housing for identification (note the HI signal uses a larger diameter hose). The differential pressure
feedback EGR sensor outputs a voltage proportional to the pressure drop across the metering orifice and supplies it to the PCM as EGR flow rate
feedback.
Differential Pressure Feedback EGR Sensor
Differential Pressure Feedback EGR Sensor - Tube Mounted
The tube mounted differential pressure feedback EGR sensor is identical in operation as the larger plastic differential pressure feedback EGR sensors
and uses a 1.0 volt offset. The HI and REF hose connections are marked on the side of the sensor.
