Question about 1996 Lincoln Town Car

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1996 lincoln town car p0403 code

I found what this code was EGR CONTROL CIRCUIT..Could this be a bad EGR Valve/Solelinod

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  • Tonezz Jan 19, 2009

    I would like to say sorry,Wrong code i was looking up....Here is the right code and what the code say's the problem is....Does anyone know what this means or what could cause this code..Thanks in advance.. Tony

    P0430 - Catalyst System Low Efficiency Bank 2

  • Tonezz Jan 19, 2009

    Thanks now i know what it's for even though i posted wrong question thanks for the super fast reply cbcs2008...Very fast response indeed....Tony

  • Harley4Mac Feb 21, 2009


    I have replaced the plugs and spark plug wires, new PVC fuel filter and new air cleaner the code posted about 300 or 400 after the above maintenance



    I have a Code Posted 1996 Lincoln town “P0430 Catalyst System Low Efficiency Bank 2” ... as displayed on the electronic display equipment at the sears auto center.



    Is there electronic sensor or component what needs to be replaced to keep from getting the code displaying the check engine light?



  • Anonymous Mar 25, 2014

    mechanic has replaced all components dealing with egr and my car still will not pass inspection. My Nox reading was very high. Could this be because of a bad converter if so are their sensore on a 1995 lincoln town car that will make the check engine light come on?

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Yes that is cat efficiency code for the bank2 (drivers side cat). When the PCM runs the cat efficiency monitor it compares the switch rate of the front O2 sensor with the rear O2 sensor to determine the ratio. If it falls below a programmed limit this code will set. There are usually 2 things that causes this. First is a lazy front O2 sensor, if your front O2 sensors have not been replaced in a while I would try replacing them first.
2nd is a bad catalytic convertor. If replacing the front O2 sensor does not correct your problem you will unfortunately need to replace the cat.

Posted on Jan 29, 2009

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Yess bad EGR valve

Posted on Jan 19, 2009

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1 Answer

I have a code p0403 on my 2003 ford escape


Hi,


This is an issue w/the EGR system.

The causes for a P0403 EGR code could be any of the following:

  • Bad EGR solenoid
  • Excessive resistance in control circuit (PCM controlled ground) due to an open, chafing or damage to the harness
  • Poor connection at the EGR solenoid harness (worn or loose pins)
  • Water intrusion at the EGR solenoid harness
  • Blockage in EGR control solenoid holding solenoid open or closed causing excessive resistance
  • Loss of supply voltage to EGR solenoid
  • Bad PCM


How many miles/kms on the Escape? If the EGR is bad, it could be due to a plugged catalytic converter in the exhaust.


Td

Nov 06, 2012 | 1999 Isuzu Rodeo

1 Answer

Code P 0403 on 2002 Chrysler Town and Country mean?


OBD Code P0403refers to
The Exhaust Gas Recirculation (EGR) system is controlled by a vacuum solenoid. The solenoid is supplied ignition voltage. The Powertrain Control Module (PCM) controls the vacuum solenoid by grounding the control circuit(ground) or driver. The primary function of the driver is to supply ground for the object that is being controlled. Each driver has a fault circuit that the PCM monitors. When the PCM turns a component on, the control circuit voltage is low, or close to zero. When the component is turned off, the voltage on the control circuit is high, or near battery voltage. The PCM watches for these conditions, and if it doesn\'t see the proper voltage at the proper time, this code is set.

Possible causes of OBD code P0403
The causes for a P0403 EGR code could be any of the following: Bad EGR solenoid Excessive resistance in control circuit (PCM controlled ground) due to an open, chafing or damage to the harness Poor connection at the EGR solenoid harness (worn or loose pins) Water intrusion at the EGR solenoid harness Blockage in EGR control solenoid holding solenoid open or closed causing excessive resistance Loss of supply voltage to EGR solenoid Bad PCM

Sep 14, 2012 | 2002 Chrysler Town & Country

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 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

1 Answer

How to remove egr valve on 1997 lincoln towncar


The EGR valve can be replaced by using a pipe wrench, or a standard wrench to remove the fitting over the pipe going into the EGR valve... it's not too hard to replace, I've done it on mine myself... I have a 97 town car as well... the only problem is that my EGR valve was fine, but the computer told me it was bad... But I found out that the EGR sensor was bad, not the valve... now to replace the EGR sensor you need to remove the engine... FORD in their infinite wisdom decided to put the EGR sensor on the rear of the engine, half way down next to the firewall...

My mechanic said that as long as the car is running fine, I souldnt worry about the EGR sensor, its job is to tell me when the EGR valve is bad...

Hope this helps

Jun 27, 2009 | 1997 Lincoln Town Car

2 Answers

2001 dodge stratus r/t code p0403


Here are possible causes for this code.

  • EGR solenoid connector is damaged (check pins for damage, and moisture)
  • EGR solenoid control circuit is open or shorted to ground
  • EGR solenoid control circuit is shorted to voltage
  • EGR solenoid has failed
  • PCM has failed
Please let me know if this information is helpful. Positive feedback is appreciated. Thank You!

Mar 26, 2009 | 2001 Dodge Stratus

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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