Question about 1998 Ford Taurus

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Dear expert, I have a 1998 Taurus with 86,000 miles. The SERVICE ENGINE SOON light is on constantly. I replaced the EGR Valve and the PRESSURE FEEDBACK EXHAUST SENSOR as suggested by my local service station. The light is still on. Any ideas how to resolve this problem? Thank you. Gamag@aol.com

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  • Keith Parker May 11, 2010

    Does the code say that it is low flow in the EGR?

  • yadayada
    yadayada May 11, 2010

    did u clear the light?

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  • 73 Answers

It is possible you have a bad evr or wiring problem, what code do you have

Posted on Jul 02, 2009

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Service engine soon light on, obd says egr valve


You should be fine. Usually what happens is when such a part causes the light to go on, the light will continue to come on again a few time after replacement of the part.

Simply disconnect the battery and let it sit for about 1minute (oat least 30 sec). Then reconnect the battery.

Drive the vehicle and if the light still comes one, take it to an auto parts dealer that can do a diagnostics test and ask them to clear the codes.

Even after this the light may come on - drive for about a week more and if it still stays on, then have the test done again and replace any other part that any codes may present faulty.

Otherwise, sometimes it itakes the computer and engine to adjust to the new part and get an accurate (consistant) reading until the light will stay off.

A lot of the time a light will come on if the O2 sensor(s) are bad. This isnt' a huge issue right aways, will slightly affect feul mileage and the amount of exhaust return into the engine for being reburned. Replace these if necessar (and if affordable).

Please let me know if you need any further assistance.

carsandcomps,

Guru, Premium Expert @ Fixya.com

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it is near the EGR valve it has two small hoses going to it, see photo below, it is called the DPFE sensor.


26cb75c.jpg

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Location of the EGR valve/DPFE pressure sensor


What engine? It won't cause any running problem but gas milage will be effected just because the light is on. Ford computers change parameters when the light is on and mileage will drop 1-2 miles per gallon.

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99 buick lesabre started running rough know check engine light came on the car has 86,000 orginal miles. what can i check.


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