Step 1 check the condition of the vacuum hoses going to the dpfe sensor and the evr.
Ford f150 dpfe sensor replacement.
Step 2 check the operation of the dpfe with the engine off key in the run position.
There are many different signs to look for when you are confronted with a bad dpfe sensor.
As you do this take care to also disconnect the wire harness holding it place.
How to troubleshoot ford egr.
Ford dpfe sensors should read between 45 and 55 volts.
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If the sensor is not within the appropriate range the sensor is faulty and should be replaced.
All other makes should read between 0 8 and 1 0 volts.
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Here are some of the most common symptoms.
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This prevents the valve from malfunctioning and allowing too much exhaust into the intake manifold at one time.
The failure of the dpfe sensor will eventually cause the pcm to produce a lean mixture as it thinks that the circulation of exhaust air has decreased.
Simply disconnect the negative battery cable unbolt the dpfe sensor from the firewall using a 10mm socket and pull it off the rubber hoses.
Look for cracks or tears.
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The sensor monitors and measures the pressure with the egr valve.
Using a digital voltmeter check for voltage on the brown light green wire.
While you can take the truck in to have the dpfe sensor replaced it s a fairly easy component to update yourself.
The differential pressure feedback exhaust sensor or dpfe sensor is part of the vehicle s exhaust gas recirculation egr system.