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What is an EVP sensor?

What is an EVP sensor?

The EVP sensor is an emission system component found on certain vehicles. It is a part of the EGR system, the emissions system that recirculates exhaust gases back into the engine to reduce cylinder temperature and NOx emissions.

Do you need to test the Ford EGR valve?

Testing the EGR system on your Ford, Mercury, or Lincoln car or truck is a pretty easy affair. You don’t need expensive testing equipment to do it and more importantly, with this article you’ll be able to find out exactly what part (of the entire system) is bad and needs to be replaced and in the process saving time and money.

What are the symptoms of a Ford EGR fault?

The following are the most common symptoms that a Ford (or Mercury or Lincoln) car or truck will usually experience when there’s a fault in the EGR system: P0401 EGR System Flow Insufficient. P01406 EGR Valve Pintle Position. Rough Idle. Really bad gas mileage.

What kind of reference voltage do I need for dpfe sensor?

Sensor Ground. 5 Volt Reference Voltage. To make it easy for you to test the particular DPFE sensor on your Ford (or Mercury or Lincoln) car or truck, I have included images of all three types of DPFE sensors with the specific circuit (you need to test) highlighted.

How to test the dpfe EGR flow signal?

Leave the vacuum pump connected to the EGR valve and go to: TEST 2: Testing The DPFE EGR Flow Signal.

How to test the Ford EGR valve EGR vacuum solenoid?

Follow the indicated flow of test steps that each test recommends. The very first thing that we’ll do is to verify that the EGR valve itself is working. You’ll need a vacuum pump for this test. This test is done with the engine running, so take all safety precautions. Remove the vacuum hose from the EGR valve.

What are the symptoms of a bad EGR valve?

Common Symptoms Of A BAD EGR Valve. The following are the most common symptoms that a Ford (or Mercury or Lincoln) car or truck will usually experience when there’s a fault in the EGR System: Car or truck runs fine, but the check engine light (CEL) is on with an EGR Valve Fault Code: P0401 EGR System Flow Insufficient.

Sensor Ground. 5 Volt Reference Voltage. To make it easy for you to test the particular DPFE sensor on your Ford (or Mercury or Lincoln) car or truck, I have included images of all three types of DPFE sensors with the specific circuit (you need to test) highlighted.

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Ruth Doyle