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The DPFE (Delta Pressure Feedback EGR) sensor on a 2002 Mazda Millenia is an emissions control component that monitors the pressure difference across the EGR (Exhaust Gas Recirculation) system. It helps ensure that the correct amount of exhaust gases is recirculated back into the engine to reduce nitrogen oxide emissions and improve fuel efficiency. If the DPFE sensor fails, it can lead to poor engine performance, increased emissions, and potential check engine light warnings.

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AnswerBot

2mo ago

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