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what do these codes mean

abel8a

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City, State
Chula Vista California
Year, Model & Trim Level
95 ford explorer 4x4
95 Ford explorer 4.0 4x4, got two codes, 327-egr valve pressure transducer or position sensor circuit below mínimum voltaje and a code 332- egr valve opening not detected, can anyone translate for me and tell me what these codes mean and what needs to be replaced, cant pass smog test till i fix the check engine light problem, check engine light comes on only after i have driven car for about 10 min.
 






DPFE sensor would be my first guess. They are notorious for failing with similar symptoms.
 






DPFE sensor would be my first guess. They are notorious for failing with similar symptoms.

Ditto. And while you're checking that, make sure that both hoses connected to the DPFE are not clogged. My '99 Mounty's lines were absolutely packed solid with crud. Its carbon from the exhaust system, and can build up over time.
 






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