Legacy Postal Wagon AWD F4-2.2L SOHC (1998)
EGR Backpressure Transducer: Description and Operation
PURPOSE/OPERATION
The Backpressure Transducer (BPT) is installed between the throttle body and the Exhaust Gas Recirculation (EGR) solenoid valve. The BPT,
varying the throttle port vacuum that acts on the EGR valve according to the throttle opening angle and exhaust gas pressure controls the rate of
exhaust gas flow to the EGR valve.
