Question about 2002 Mazda Tribute

1 Answer

Egr problem, took it to Autozone for diagnose and theys say it can be either the EGR valve or de EGR pressure sensor, how can I check what problem it has? thanks.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,050 Answers

The valves rarely fail, what usually happens is the passage that delivers the exhaust gas into the intake manifold gets plugged. It is possible you have a problem with the sensor but the code should tell the difference between the two. What is the trouble code?

Posted on Apr 03, 2011

  • gabedez
    gabedez Apr 11, 2013

    the trouble code is p041

×

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

EGR Valve keeps blowing out and no power


EGR valve blow-out can be caused by a clogged catalytic converter. A clogged cat. converter will cause pressure to back up in the engine. A test to perform is remove the front oxygen sensor from the exhaust to see if the engine runs better. Removing the oxygen sensor will relieve the pressure if, in fact the cat. converter is clogged. Another cause for EGR blow-out could be that the timing has jumped.The timing can be checked to diagnose this issue.

Mar 28, 2014 | 2003 Mazda Tribute

1 Answer

Egr sensor


Without knowing what the actual code is, I can only give you general info.
No trouble code tells the mechanic what the problem is. Only what to test or check. So O'Reilly was wrong if they said the code told them the injectors were clogged. And AutoZone was not right in saying the sensor is bad, the sensor MAY be bad.
The trouble codes direct the mechanic as to what to check by saying the sensor is not sending the right data or signal, or the computer can not control a component correctly. In your case, the EGR sensor measures pressure and flow for the EGR valve. The valve may be faulty, or the sensor, or a hose in between.
So the EGR system would need to be checked out to determine if a component needs to be replaced or not.

May 09, 2013 | 2006 Dodge Grand Caravan

1 Answer

I had a diagnostics test don't on my 1997 Chevy Lumina. It showed several problem 1) Blocked passage on EGR system, Failed EGR valve, EGR solenoid faulty, Failed EGR pressure sensor where applicable...


All that Failed EGR valve, EGR solenoid faulty, Failed EGR pressure sensor and failed EGR vposition sensor may be telling you that is the EGR valve is faulty and not that it is loaded up with carbon. But I know you don't want to hear that as that EGR cost more than a can of carb clean and I don't blame ya!

If yoy have a multi meter, check out easyautodiagnostics.com, go to the GM section for your motor, chose test EGR and there should be an explanation on how to run some test on your EGR before you buy a new one.

Sep 04, 2011 | 1997 Chevrolet Lumina

2 Answers

Need to find and replace the DPFE-15 sensor. Dealership diagnosed when service engine light came on and saaid this is what needed replacing. Problem is I do not know where to find it on the engine.


Exhaust Gas Recirculation (EGR) System The exhaust gas recirculation (EGR) system is designed to:
  • reintroduce exhaust gas into the combustion cycle.
  • lower combustion temperatures.
  • reduce the formation of oxides or nitrogen (NOX).
The amount of exhaust gas reintroduced and the timing of the cycle varies by calibration. Timing and volume are controlled by the following:
  • engine rpm
  • engine vacuum
  • exhaust system back pressure
  • engine coolant temperature
  • air charge temperature
  • throttle position
The EGR valve (EGR valve) (9D475) is vacuum-actuated. The vacuum hose routing diagram is shown on the Vehicle Emission Control Information (VECI) decal. The EGR system is a differential pressure feedback EGR Sensor system. Differential pressure feedback EGR Sensor is a subsonic closed loop EGR system. The differential pressure feedback EGR system:
  • monitors EGR flow rate by the pressure drop across the metering orifice located in the EGR tube.
  • uses a differential pressure feedback EGR sensor as the feedback device.
  • uses the EGR valve only as a pressure regulator, rather than a flow metering device.
  • controlled pressure is varied by the valve movement using vacuum output of the EGR vacuum regulator solenoid (9J459).
  • allows for a more accurate assessment of EGR flow requirements.


Differential Pressure Feedback EGR Flow Diagram


aa3104a.gif

Differential Pressure Feedback EGR Sensor Removal
  1. Disconnect engine control sensor wiring (12A581) from Differential Pressure Feedback EGR Sensor.
  1. Disconnect Differential Pressure Feedback EGR Sensor hoses from EGR valve to exhaust manifold tube (9D477).
  1. Remove retaining nuts or bolts (depending upon application) and EGR Differential Pressure Feedback transducer.
Installation
  1. Follow removal procedure in reverse order.
  1. Tighten retaining nuts or bolts (depending upon application) to 5-7 Nm (45-61 lb-in).


    Differential Pressure Feedback EGR Sensor, 3.0L (2V) Engine


    aa0036a.gif



    Differential Pressure Feedback EGR Sensor, 3.0L (4V) Engine


    a23840a.gif


    Item Part Number Description 1 6049 RH Cylinder Head 2 - Differential Pressure Feedback EGR Sensor 3 - Nut (2 Req'd) 4 - Stud Bolt 5 - Bolt (2 Req'd) 6 - Differential Pressure Feedback EGR Sensor Bracket A - Tighten to 5-7 Nm (45-61 Lb-In) B - Tighten to 8-12 Nm (71-106 Lb-In)

    Engine Emission Control Component Location-3.4L SHO Engine


    a25013a.gif


    Item Part Number Description 1 95607-05200 Nut 2 - EGR Sensor Hose 3 - EGR Sensor Hose 4 95027-08016 Bolt 5 - Differential Pressure Feedback EGR Sensor 6 9J433 Differential Pressure Feedback EGR Sensor Mounting Bracket 7 9D474 EGR Solenoid Vacuum Valve (2 Req'd) 8 A4670 Vacuum Tube Assembly 9 9424 Intake Manifold 10 9J459 EGR Vacuum Regulator Solenoid A - Tighten to 5-7 Nm (45-61 Lb-In)
Hope this helps

Aug 14, 2011 | 1999 Ford Taurus

2 Answers

This is the code number after testing for the check engine light P0401. Also , the exhaust gas recirculation flow is insufficient.


More than likely you have a faulty EGR Valve Pressure Sensor, especially if your EGR Valve Pressure Sensor is the original metal type. The new sensor is made of plastic and doesn't corrode like the old design. This sensor is located on the Intake Manifold.

pctech1_40.jpg

Here is the sensor: http://www.autozone.com/autozone/parts/2001-Mercury-Sable/EGR-Valve-Pressure-Sensor/_/N-jfkhrZ93y2i

It is also possible that the EGR Valve has a clogged port, but this is less likely.

Mar 15, 2011 | 2001 Mercury Sable

1 Answer

Would replacing the egr valve fix the other faults such as egr solenoid fault,egr pressure sensor fault and egr positionsensor fault


The EGR valve can be tested with a Vacuum pump. If the diaphragm is bad, the valve will not change positions. Hence the error Code for the position sensor not opening to allow the valve to work. And the error code for the pressure sensor not registering a change in pressure because the EGR valve did not work.

So both sensors can give a false Code. On the other hand, you will see both sensors have Vacuum lines and electric connections. When the electricity is switched on, vacuum is suppose to flow back to the EGR Valve. That is why the first thing you do is test the EGR Valve to see if the diaphragm is broke.

If the EGR valve holds pressure it should be okay. Then you would want to check for pressure in the lines coming off of the switches. Remember to clear the onboard computer each time you replace a part, or you will get 25-35 Startups worth of false information.

Both Autozone and Oreillys will scan or clear your car for free. I hope you find my solution very helpful. You usually don't have a complete failure of all 3 parts at the same time.

Dec 12, 2010 | 2000 Ford Taurus

1 Answer

I have a 2005 Dodge Dakota V8 4x4 My check engine light turned on. I took the truck to Autozone to have them hook up the machine and see what the problem was. It said I have a bad EGR Valve. I havent...


It can affect mileage, but it might not be the valve. EGR systems tends to get clogged by gunk. Take the valve off and see how dirty things are. If the system is clogged up, take apart as much as you can to clean it up. You can test the valve for operation with a good scanner (autozone doesn't do this--they just tell you the code). Here are instructions from autozone.com:

Linear EGR Valve Diagnosis
The linear EGR valve diagnosis procedure varies depending on the vehicle make and model year. Always follow the recommended procedure in the vehicle manufacturer's service manual. The scan tester may be used to diagnosis a linear EGR valve. The engine should be at normal operating temperature prior to EGR valve diagnosis. Since the linear EGR valve has an EVP sensor, the actual pintle position may be checked on the scan tester. The pintle position should not exceed 3% at idle speed. The scan tester may be operated to command a specific pintle position, such as 75%, and this commanded position should be achieved within two seconds. With the engine idling, select various pintle positions and check the actual pintle position. The pintle position should always be within 10% of the commanded position. When the linear EGR valve does not operate properly:
  • Check the fuse in the 12 V supply wire to the EGR valve.
  • Check for open circuits, grounds, and shorts in the wires connected from the EGR valve winding to the PCM.
  • Use a digital voltmeter to check for 5 v on the reference wire to the evp sensor.
  • Check for excessive resistance in the EVP sensor ground wire.
  • Leave the wiring harness connected to the valve, and remove the valve. Connect a digital voltmeter from the pintle position wire at the EGR valve to ground, and manually push the pintle upward. The voltmeter reading should change from approximately 1 V to 4.5 V.
436f9a1.jpg Linear EGR valve circuit. Courtesy of Chevrolet Motor Division-GMC.
If the EGR valve did not operate properly on the scan tester and tests 1 through 5 are satisfactory, replace the valve.

Here is what your valve looks like:
If you have more questions, please let me know.
a65cb7d.jpg

Oct 13, 2010 | 2005 Dodge Dakota

3 Answers

I REPLACED EGR BUT LIGHT STILL ON SAME CODE


Hi:
I am not sure what code you have, but there is also an EGR sensor code that is tripped, and it isn't the EGR valve, but the EGR pressure sensor. Did you clear the codes off of your vehicle, or just replace the part? If you didn't clear them, then it can take 50 start cycles to get the light to go out by itself.

Apr 15, 2010 | 2000 Ford Expedition

1 Answer

1996 ford explorer w5.0l motor, cant find the PFE sensor valve!


on the explorer the tube running to the egr valve should have two rubber hoses running off it going to the dpfe sensor, (the exhaust pressure sensor),try looking there and if it is not there mesg me back and i will be sure to find it for you.


Jul 30, 2009 | 1996 Ford Explorer

1 Answer

Error Code 406 EGR Positions Sensor


yes it is..you need to replace egr valve assembly..make sure you disconnect battery while replacing..some times fault will return even after replacing valve..

Mar 15, 2009 | 2005 Dodge Caravan

Not finding what you are looking for?
2002 Mazda Tribute Logo

Related Topics:

195 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mazda Experts

yadayada
yadayada

Level 3 Expert

76070 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8266 Answers

Are you a Mazda Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...