Question about 2006 Chevrolet Equinox

Open Question

Chevy equinox p0404 p1404

Replaced egr 2x erased dtc codes same codes are currently present after driving truck for 10 miles, also had the pcm flashed at the dealer for $164 today to no avail problem still predent

Posted by on

Ad

2 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
ourhowse
  • 2007 Answers

SOURCE: 1998 Chevy Truck 1/2 ton 350 engine. Trouble codes

404 is exhaust gas recirculation circuit, and 405 is exhaust gas recirculation sensor circuit low. EGR sensor or ground?

Posted on Nov 13, 2009

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

I have a 2004 pontiac grand am with the service engine light on. When read it was the P0300, P0401, and P1404 codes. The mechanic said there wasn't a leak, so it must be the EGR valve. It was replaced. I...


po300 random misfire po401 low flow egr p1404 egr. check spark plugs and check for vacume leaks. with the po400 1404 could be your egr valve is good but po400 means low flow which to me indicates that the egr passage may be clogged up and needs to be cleaned out check out scottykillmer.com the passage way may be easy to clean depending on the position of the egr vavle but you might have to remove the intake manifolld

Nov 02, 2013 | Pontiac Grand Am Cars & Trucks

1 Answer

What can i do if my car failed the emmissions test


P1404 is an EGR code for this application! (P1404 EGR Valve Closed Position Performance). You should clean the EGR valve and then there is a procedure to reset the learned voltage value, it may be alright but it has to relearn the voltage! To do this : The code sets if the PCM sees voltage that is more than 0.29 volts above the learned minimum. The engine needs to be RUNNING when the DTC is cleared. Clearing the DTC also triggers the closed EGR minimum voltage relearn. If you clear the DTC with the key on, engine off, the voltage may be high enough when the engine is running to trigger the code again.

Sep 28, 2012 | 2003 Kia Spectra

1 Answer

I am getting two codes from my 05 equinox it's


    P0404
    EGR Sensor Circuit Range/Performance, Stuck Open, to fix, either clean out or replace it, this should do it. p1404 relates to same problem. replace EGR and you should be ok. dont forget to clear the code when repaired.

    May 01, 2012 | 2005 Chevrolet Equinox

    3 Answers

    I replaced the EGR on my 1999 saturn due to a P1404 code. After driving it for about a week code came back. The idle was not stable, this was the reason why I replaced the EGR. Now the idle is rough at...


    i would remove the egr and just the passage to make sure it is not filled with carbon. common problem. here is some info for you as well.

    Circuit Description
    899964.gif
    tif.gif
    The linear EGR system consists of a linear EGR valve, the PCM, and its associated wiring. The EGR valve solenoid is controlled directly by the PCM when certain conditions have been met. The PCM contains a diode feedback circuit which dissipates energy when the valve is cycled OFF. When the PCM commands the EGR valve closed, a closed valve position value is learned. If the PCM commands the valve closed and the actual feedback value does not match the learned values, DTC P1404 will set.
    Conditions for Setting the DTCImportant: When the PCM recognizes that the parameters for setting DTC P1404 have been set, the diagnostic software waits until the EGR cycles open 50 percent or greater 4 times and then resets. If after the 3 cycles the actual vs learned is not within the parameters, the DTC will be stored and the MIL, service engine soon, will be commanded ON.
    Important: When this DTC sets, functions will be disabled. When repairs are complete, codes must be cleared and the ignition keyed OFF for at least 10 seconds to allow proper operation.
    DTC P1404 will set when the actual closed value does not match the learned closed value within 20 seconds if:
    • RPM is below 5,000 and the actual vs learned is greater than 0.2 volts. OR • RPM is above 5,000 and the actual vs learned is greater than 0.4 volts. Diagnostic Aids • Check for backed out or damaged terminals. • Check for a stuck open EGR pintle. Inspect the EGR pintle valve bore for carbon or debris and remove. Verify that the pintle moves freely and the return spring forces the pintle closed. • An open in circuit 452 will result in DTC P1404. • A short to ground is circuit 697 will result in a severe rough idle and driveability complaint and set a DTC P1404. • Compare the learned closed pintle position to the actual closed pintle position with the key ON and the engine OFF. If voltage differs more than 0.15 volts, check for backed out, damaged, poor terminal tightness, or an intermittent open in circuits 416 or 1456.
    900889.gif

    Jul 29, 2011 | 1999 Saturn SL

    1 Answer

    Trouble code P1406 Failed EGR value, Open or short circuit condition Also code P0301 misfire cylinder 1 Next steps? Information for replacing EGR value? 1997 Bonneville SE 105K


    P1406 Code - EGR Valve Pintle Position Circuit
    The PCM monitors the EGR valve pintle position input to ensure that the valve responds properly to commands from the PCM and to detect a malfunction if the pintle position sensor and control circuits are open or shorted. If the PCM detects a pintle position signal voltage outside the normal range of the pintle position sensor, or a signal voltage that is not within a tolerance considered acceptable for proper EGR system operation, the PCM will set DTC P1406.

    CONDITIONS FOR SETTING THE DTC

    Ignition 1 voltage is greater than 10 volts.
    EGR Feedback is less than 0.14 volt at any time.

    OR

    EGR Feedback is 0.4 volt greater or less than the EGR Closed Valve Pintle Position when the Desired EGR Position is commanded to 0%.

    OR

    Actual EGR Position is 20% greater or less than the Desired EGR Position.
    Any of the above conditions are present for longer than 20 seconds.

    ACTION TAKEN WHEN THE DTC SETS

    The PCM will illuminate the Malfunction Indicator Lamp (MIL) during the second consecutive trip in which the diagnostic test has been run and failed.
    The PCM will store conditions which were present when the DTC set as Freeze Frame and Fail Records data.

    CONDITIONS FOR CLEARING THE MIL/DTC

    The PCM will turn the MIL OFF during the third consecutive trip in which the diagnostic has been run and passed.
    The history DTC will clear after 40 consecutive warm-up cycles have occurred without a malfunction.
    The DTC can be cleared by using the scan tool Clear Info function or by disconnecting the PCM battery feed.

    DIAGNOSTIC AIDS
    Check for the following conditions:

    Open EGR ignition filter circuit.

    An open in the EGR ignition filter circuit will cause EGR Position Error to vary erratically while the EGR valve is operating. With the ignition ON, a test light should illuminate when connected between ground and the EGR ignition filter circuit at the PCM connector. If not, locate and repair the open in the EGR ignition filter circuit.

    Excessive deposits on EGR valve pintle or seat.

    Remove the EGR valve and check for deposits that may interfere with the EGR valve pintle extending completely or cause the pintle to stick.

    Poor connection or damaged harness. Inspect the wiring harness for damage. If the harness appears to be OK, observe the Actual EGR position display on the scan tool while moving connectors and wiring harnesses related to the EGR valve. A change in the display will indicate the location of the malfunction.

    Reviewing the Fail Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set

    TEST DESCRIPTION
    Number(s) below refer to the step number(s) on the Diagnostic Table:

    Verifies that the malfunction is present.

    The PCM contains a recirculation diode which filters the EGR ignition feed for the EGR valve. The recirculation diode is connected to the ignition filter (EGR ignition feed) circuit. If the ignition filter circuit is open, Actual EGR position may be erratic when compared to Desired EGR position. An open in the EGR ignition filter circuit will cause DTC P1406 to be set after an extended period of time.
    If DTC P1406 will only set under certain conditions, the malfunction may be intermittent; refer to DTC P1406 Diagnostic Aids. If an intermittent wiring problem is not present, check for a poor connection at the PCM or the EGR valve. If the connections are OK and DTC P1406 continues to set, replace the EGR valve.

    This vehicle is equipped with a PCM which utilizes an Electrically Erasable Programmable Read Only Memory (EEPROM). When the PCM is being replaced, the new PCM must be programmed.


    ------------------------------------------------------------------------------------------------------------------------------
    P0301 Code - Cylinder #1 Misfire Detected
    A P0301 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #1.

    Symptoms may include:
    the engine may be harder to start
    the engine may stumble / stumble, and/or hesitate
    other symptoms may also be present

    Causes: A code P0301 may mean that one or more of the following has happened:
    Faulty spark plug or wire
    Faulty coil (pack)
    Faulty oxygen sensor(s)
    Faulty fuel injector
    Burned exhaust valve
    Faulty catalytic converter(s)
    Running out of fuel
    Poor compression
    Defective computer

    Possible Solutions:
    If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.

    If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.


    Check it and keep us updated.

    May 03, 2011 | 1997 Pontiac Bonneville

    1 Answer

    1998 Chevy Truck 1/2 ton 350 engine. Trouble codes P0404, P0405 and P1404. I replaced the EGR valve. Now I get t/c P0404 and P0405. Now what should I check?


    404 is exhaust gas recirculation circuit, and 405 is exhaust gas recirculation sensor circuit low. EGR sensor or ground?

    Nov 13, 2009 | 1999 Chevrolet Silverado 1500

    1 Answer

    PCM code P0404


    P0404 - Exhaust Gas Recirculation (EGR) Open Position Performance
    I suspect the EGR got stuck closed, u will need to put around 30 miles on the car before the light will return if the problem is still present..

    May 26, 2009 | 1999 Saturn SL

    1 Answer

    I am having trouble getting my check light to go off after I had it checked and the EGR valve was replaced. The light comes back on after about 15 miles of driving and the code reads EGR poor flow. I can...


    Insufficient EGR Flow Detected

    Possible Causes:
    DPFE sensor signal circuit is shorted to ground
    DPFE sensor VREF circuit is open between sensor and PCM
    DPFE sensor downstream hose off or plugged
    DPFE sensor hoses both off, loose or damaged
    DPFE sensor hoses connected wrong (reversed)
    EGR orifice tube is damaged or restricted
    PCM has failed
    And what sets the code is…….Engine started, engine running in closed loop under steady cruise conditions, and the PCM detected the DPFE sensor input indicated insufficient EGR gas flow. Run the KOER Self-Test, and if DTC P1408 is present, the fault is currently present. This code sets in 2 Trip(s). The light will stay on until the cause is repaired. A bad EGR valve is only on possible cause.

    Hope this helps,

    Dave

    Feb 28, 2009 | 2002 Ford Mustang

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

    Related Topics:

    217 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Chevrolet Experts

    yadayada
    yadayada

    Level 3 Expert

    76848 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22246 Answers

    Ronny Bennett Sr.
    Ronny Bennett Sr.

    Level 3 Expert

    6927 Answers

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

    Answer questions

    Manuals & User Guides

    Loading...