Question about 2001 Mitsubishi Montero

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2001 MONTERO SPORT 6CLY 3.0L CHECK ENG LIGHTS TURN ON WITH P0403 EGR CIRCUIT MALFUNCTION. CAN YOU SHOW ME A DIAGRAM ABOUT THE EGR CONNECTED TO 12VOLT AND TO ECM

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  • Rudy Cordova
    Rudy Cordova Aug 23, 2010

    THANK YOU VERY MUCH

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What a wiring nightmare...
2001 MONTERO SPORT 6CLY 3.0L - d62d58e.jpg48f18b7.jpg

Posted on Aug 23, 2010

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Hello I have a huyandai Tucson 2005 Today I check with device it sayes P0403 EGR . What is this . How can I arrange that. It's important or not . Can I drive without arrange that.


P0403 - OBD-II Trouble Code - RepairPal

repairpal.com > Encyclopedia > Exhaust & Emissions
Definition of error code P0403 - Exhaust Gas Recirculation Circuit Malfunction. ... TheEGR OBD-II monitor deploys a set of test criteria that are usually run ... Problem, a Plugged or Restricted System, or a Defective Feedback Device ... Nissan ' Volkswagen ' Chrysler ' Lexus ' Mercury ' Cadillac ' Hyundai ' Buick ' Volvo ' AudiMissing: tucson ‎sayes

OBD-II Trouble Code: P0403 Exhaust Gas Recirculation ...

www.obd-codes.com/p0403
Causes. The causes for a P0403 EGR code could be any of the following: ... If the solenoid does operate, you'll have to check current draw on the ground circuit.Missing: huyandai ‎tucson ‎device ‎sayes

Egr P0403 Fault Code Help - Hyundai Forums : Hyundai Forum

www.hyundai-forums.com/...xg.../102478-egr-p0403-fault-code-help.ht...

Dec 12, 2015 | Cars & Trucks

1 Answer

2001 mitsubishi montero sport code po 403



Trouble Code: P0403

EGR Control Circuit Malfunction
Possible Causes:


EGR solenoid control circuit is open or shorted to ground . EGR solenoid power circuit is open (check power from relay) . EGR solenoid is damaged or has failed . PCM has failed .

Sep 11, 2012 | Cars & Trucks

2 Answers

2002 Mitsubishi Eclipse Service Engine Soon Light On


codes p0402--p0403deal with exhaust gas recirculation control circuit malfunction as well as the performance of this circuit check connections

Aug 29, 2012 | 2002 Mitsubishi Eclipse

1 Answer

Code p0403 on a 2001 chrysler intrepid


Hi there:
P0403 - Exhaust Gas Recirculation Circuit Malfunction



The most common failure is the EGR solenoid goes bad. The code will not set and turn on the light until the car's computer has gotten around to completing the EGR self-test.

The P0403 indicates the computer is not seeing any voltage on the blue wire coming back from the egr solenoid.


With the ignition on and engine off, use a scan tool to activate the EGR solenoid. Listen or feel for a clicking, indicating that the solenoid is operating.

If the solenoid does operate, you'll have to check current draw on the ground circuit. It should be less than one amp. If it is then the problem is intermittent. If it isn't then there is excessive resistance in the circuit and perform the following

1. When it's activated see if you can blow lightly through it. IF you can\'t there may be a blockage causing excessive resistance. Replace EGR solenoid as needed. If there is no blockage, disconnect the EGR solenoid and the PCM connector containing the EGR solenoid control circuit. Using a digital Volt-Ohm meter (DVOM) check resistence between the control circuit and battery ground. It should be infinite. If it isn't, then there is a short to ground on the control circuit. Repair the short to ground and retest as needed.

2. If the solenoid doesn't click as it should, disconnect the EGR solenoid connector and connect a test light between the two wires. Using the scan tool, command the EGR solenoid on. The light should light up. If it does, replace the EGR solenoid. If it does not perform the following: a. Check for 12 Volts on the ignition supply voltage to the solenoid. If it isn't present, inspect the supply circuit for an open, or a short due to chafing or breakage and re-test. b. If it still doesn't operate: then manually ground the EGR solenoid control circuit. The light should light. If it does, repair open in EGR solenoid control circuit and re-test. If it doesn't, replace EGR solenoid.


Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Aug 28, 2012 | 2001 Dodge Intrepid

1 Answer

Get code P0403 on 2001 Dodge Caravan...even after I just replaced the EGR valve twice (first replaced as thought might be faulty).....it cleared a few other codes related to EGR flow, but the P0403 ke


if you have a obd11 scanner, clear the codes and drive the vehicule for a while ,a good half an hour or so above 30 mph. this will give your onboard computer a chance to relearn system settings.if the code comes back there could be some other sensor malfunctioning or a problem with the onboard computer.ex corroded connections or broken pins.

Nov 26, 2011 | 2001 Dodge Caravan

1 Answer

Code number po 403


code P0403 EGR ( exhaust gas recirculation ) valve solenoid malfunction, could be many things most likely would be just a bad control solenoid but could be the wiring to the solenoid, but most likely is not a bad EGR valve.

Jun 18, 2011 | 2000 Mitsubishi Montero Sport

1 Answer

What does the code p0403 and p1784 mean and what do i need to do to fix it


P0403 - Exhaust Gas Recirculation Circuit Malfunction

Causes for DTC P0403:
- Harness or connectors (EGR volume control valve circuit is open or shorted.)
- EGR volume control solenoid valve
- EGR temperature sensor and circuit

Solutions for DTC P0403:
- Repair EGR harness or connector
- Replace EGR volume control solenoid valve
- Replace EGR volume control valve


P1784 - Transmission Mechanical Failure (First and Reverse)

Causes for DTC P1784:
- Not waiting to allow transmission to engage gear before accelerating.
- Dirty fluid / clogged transmission filter

Solutions for DTC P1784:
- Allow gears to engage before acceleration
- Preform transmission service (flush & filter)

Mar 09, 2011 | Chrysler Town and Country Cars & Trucks

2 Answers

P0403 what to do


The dpfe sensor of the egr system has failed you.This is not an egr valve problen rather the sensor has i mentioned . The part runs about $ 65:)

Aug 26, 2009 | 2001 Ford Ranger Regular Cab

2 Answers

2001 grand caravan


the a/c condenser fan fuse could be blown. replace fuse and disconnect battery. there is also a TSB relating to this. call dealer to confirm

Mar 12, 2009 | 2001 Dodge Grand Caravan

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