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Re: manufactorer dtc
DPFE code (Delta Pressure Feedback). Very common failure point on Fords. The sensor detects the change in pressure to confirm that the EGR valve is accurately metering exhaust gas. Some people have had luck drilling out the rivets that hold the sensor together, cleaning the insides and re-riveting. But most replace the valve with the newer style. Make sure you check the hoses for any leaks and check the exhaust ports on the manifold to make sure they're not plugged with carbon.
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