Question about Hyundai Sonata

1 Answer

2003 hyundai sonata 2.4 dtc po401 have changed egr egr solenoid and plastic vaccum valve cleaned intake ports replaced o2 sensor checked wiring all the way back to computer cleaned all engine grounds replaced egr valve no intake leaks or exhaust leaks all parts replaced with factory even went to dealer who diagnosed bad egr solenoid reset light test drive light comes on within ten miles any help would be nice

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 36 Answers

Problem is typically the sensor or the device that is being monitored by the sensor. The the EGR return pipe is not properly engineered, a cold pipe with cause the inside to gum up with carbon deposit. This pipe is used to pick up exhaust gas to dilute the air before the combustion. If this "connection" is clogged, you will have a rough time at higher speeds. Pipe is easy enough to remote and take a look inside. If the gum up is too thick, I won't spend the time to chissle this out and just buy a replacement.

Posted on Oct 22, 2013

Ad

6 Suggested Answers

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
csmock132
  • 4669 Answers

SOURCE: Check engine light keeps coming on with code 332 egr code.

The Egr ports are plugged in the intake. Remove the throttle body elbow behind the throttle body, and clean out the carbon. I can walk you through it if you need me too. This is common on the 4.6

Posted on Mar 02, 2009

stevenhurc
  • 450 Answers

SOURCE: engine light was on and engine idles rough.

these O2 sensors are cat convertor check sensors. id be checking cat convertors and hopefully you should try replacing if not all ready is the front bank 2, O2 sensor
if you have scanner can you see fuel trims in data display to confirm high fuel trim only on bank 2 either +-5 or more indicates problem and if bank 2 sensor 2 has fixed high 700mv reading cat no good(warm idling)

Posted on Jul 10, 2009

  • 133 Answers

SOURCE: running lean

Have you a leak in the exhaust??even a small leak will cause the lambda value to be out check your exhaust

Posted on Mar 03, 2010

Testimonial: "will do thank you!"

  • 361 Answers

SOURCE: I have a 2002 hyundai

try changing o2 sensor

Posted on Sep 02, 2010

emissionwiz
  • 76846 Answers

SOURCE: Ford Escort P1405 Error Code

Are you sure you have EGR flow?? Hold the EGR valve open the engine should run poorly, if not you have no flow.

Posted on Jun 01, 2012

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

What are the probable causes of DTCs P0400, P0171, P0174 y P0302?


DTC code PO400 could be caused by a clogged EGR valve or EGR tube. try cleaning the EGR valve, tube
DTC code PO171 is fuel system too lean bank 1
DTC code PO174 is fuel system too lean Bank 2
Most likely suspects are O2 sensors, But can be caused by vacuum leaks and also can be Mass airflow sensor (MAF) try cleaning with electrical parts cleaner
DTC code PO 302 is a misfire at cylinder # 2
Check spark plugs and wires
Try cleaning the EGR Valve first along with changing the spark plug first, and see if any codes erase, in other words start with the cheaper fixes first, as some problems can be causing the other other codes

Sep 18, 2015 | Cars & Trucks

1 Answer

PO401 code car idles fine how do I fix? Yellow stripe hose clamped egr does not work if I put vacuum directly to egr it will work. Hoses look good. I think might be egr solenoid has office inside. 2004...


Use a vacuum pump and pull the EGR valve open while monitoring engine RPM's & DPFE voltage. There should be a noticable difference in RPM's with the EGR open

Clean out the EGR valve and/or tubing to remove deposits

Check the voltage at the DPFE, compare to specified values (refer to a repair manual for your specific model)

Replace the DPFE sensor (with a good quality / OEM one)

Replace the EGR valve

Aug 18, 2011 | 2001 Hyundai Santa Fe

2 Answers

Check engine light comes on for 2004 Hyundai Sante Fe. O2 sensor was replaced but still has the problem. Does the EGR manifold tend to get clogged up on the Sante Fe? I fixed a Honda Civic check engine...


First of all, why was the O2 snsr replaced?... Check Engine light? What DTC (diagnostic trouble code) did you find stored in the ECU (Engine Control Unit)? The drivability you seem to be describing can have multiple causes -- faulty sensors, malfunctioning computer, clogged catalytic converter, leaky injectors, vacuum leaks, etc.

Ok... this is gonna take some time. The 04 Santa Fe came with 3 (three) different/possible engines -- the 4 Cylinder 2.4 lit, the 2.7 V6, and the 3.5 V6. Only the 2.4 (4 cyl) and the 3.5 V6 are equipped with EGR. The 2.7 does NOT have EGR. To answer part of your question, the EGR system on the 4 Cyl is known to develop restriction(s) in the EGR port (from the # 4 cylinder exhaust port to the EGR valve at the intake manifold). This port travels through the head (front to rear, i.e., Left to Right when viewing the engine from the transmission end). This port cannot be seen at the # 4 cylinder exhaust port unless you remove the exhaust manifold.

It would be very helpful if you could provide more detailed/specific information regarding the drivability issue & what/which codes were found related to the Check Engine light.

Feb 12, 2011 | 2004 Hyundai Santa Fe

1 Answer

I have a 1998 Saturn SC1 1.9 LT. SOHC. CODES: P0341 and P0401. P0341 Set when vehicle was first starting. Coolant temp:2 not moving. No load P0401:Set when 33% load and 58 km/hr. What I have noticed: High...


CODE PO341 IS CAMSHAFT POSITION SENSOR SIGNAL RANGE PERFORMANCE CONDITIONS. CODE PO401 IS INSUFFICIENT EGR FLOW DETECTED CONDITIONS. CLEAN CARBON BUILD UP OUT EGR SOLENOID PORT HOLE IN THE INTAKE MANIFOLD.REPLACE THE EGR VALVE SOLENOID GASKET.ANY TIME DISTURB REMOVE GASKET.IF YOU REUSE OLD EGR VALVE GASKET YOU WILL GET VACUUM LEAK CAUSE HIGH IDLING PROBLEMS. WHEN REPLACING SPARK PLUGS. USE WHAT FACTORY CALL FOR.YOU NEED AC TYPE PLUGS. IF THEY WHERE PLATINUM PLUGS YOU HAVE TO REPLACE WITH SAME PLATINUM PLUGS.

Jan 27, 2011 | 1998 Saturn SC

5 Answers

ENGINE RUNS FINE. SERVICE LIGHT IS ON AND THE CODE NUMBER SHOWING IS PO401. WHAT IS THIS FOR SAYING?


  1. po401 refers to an insuffient flow of EGR gasses
  2. locate egr valve
  3. with engine running at idle
  4. on the underside of the valve you can access the diaphram.
  5. wearing glove if ness
  6. lift diaphram while idling
  7. does engine stall or run very rough?
  8. if not remove valve
  9. start engine
  10. you should hear a very large vaccum leak and exhaust noise
  11. if either are missing investigate cause
  12. if ok reassemble.
  13. locate DPFE sensor
  14. inspect sensor for damage
  15. inspect hose to sensor for damage
  16. replace sensor
  17. 9ecffd7.gif

Aug 10, 2010 | 1999 Ford Taurus

2 Answers

Code 2195 wont go away after replacing o2 sensors and fuel filter


Computer is seeing lean condition via o2 sensor. Most likely a vacuum leak check all hoses, ports,egr valve & dpfe sensor & egr solenoid & intake manifold.

Jun 07, 2010 | 2005 Lincoln Navigator

1 Answer

How do you replace the EGR valve on a 2000 Mazda MPV?


if you are lockey to have one it is on the intake manifold two bolts or three depending on the engine and some have a tube / and eather vaccum or electric wires attached // if you don't have an egr try changing your o2 sensors ( some manufactures use the o2 sensors as the up & down stream and have removed the egr valve

Mar 01, 2010 | 2000 Mazda MPV

4 Answers

2005 hyundai sonata - no warranty


go to autozone buy a repair manual.its about.$24.00 dollars.it will show you show you how to do your own repair.you go buy the egr valve and tps sensor.now on the egr valve make sure the port in the intake where the egr valve is not stop up with carbon.if so becareful and easy cleaning out the carbon using a piece of clothes rack .clean up the debris.reason so because egr valve is not cheap.i seen them from $250.00 and up.you dont want to buy one if you dont need it.

Jun 12, 2009 | 2006 Hyundai Sonata

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

267 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hyundai Experts

yadayada
yadayada

Level 3 Expert

76846 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22246 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8560 Answers

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

Answer questions

Manuals & User Guides

Loading...