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EGR Backpressure Transducer: Description and Operation
PURPOSE The
Exhaust Gas Recirculation (EGR) backpressure transducer valve is used to control EGR.
OPERATION The
EGR valve is operated by ported vacuum, but the ported vacuum will normally be vented off at the
EGR backpressure transducer valve. As rpm increases, exhaust pressure increases and pushes on the diaphragm in the EGR backpressure transducer valve.
