P1403 DPFE ENGINE WARNING LIGHT IS ON,DIAGNOSTIC REVEALS FAULT CODED P1403 DPFE HOSES REVERSED. WHATIS THIS & HOW IS IT REPAIRED

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Failure of EGR Differential Pressure Sensor : Mazda Tribute ...

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Check Engine Light and Hesitation or Stumbling While Driving on Mazda Tribute ...this is my second egr valve and car is not picking up the right sped and when ... Mazda Tribute 2003, replacing burnt DPFE, connector bunrt, Need color pinout. ... Drivetrain · Electrical & Lights · Engine · Exhaust & Emissions · Heating & AC ...

Check Engine Light Diagnosis Cost for Mazda Tribute ...

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A Check Engine Light is turned on when the Mazda Tribute engine control module detects a fault in the emissions system. One or more diagnostic codes will be

What make, model an year vehicle ? P1403 could mean something different from make to make .
P1403 - DPFE Sensor Hoses Reversed
P1403 Chevrolet - Exhaust Gas Recirculation System Valve 1
P1403 Hyundai - DMTL Valve Circuit
P1403 Volkswagen - EGR System Control Difference

if you can read the faults then teh code reader should tell you ,if not then download OBDII codes from a torrent site as iam feeding .


P1479 Vacuum system, brakes - mechanical fault
P1403 EGR Flow Deviation

3089 is not showing in my VW code sheet

OBD2 fault codes have no cut and dry fix for every car that has it in memory. Here is the general info on the code. This code refers to the EGR valve back pressure sensor called the "DPFE" sensor
P1401 - DPFE Circuit High Input
Symptoms - Engine Light ON (or Service Engine Soon Warning Light) Possible causes

DPF EGR circuit open.

VREF short to PWR.

Damaged DPF EGR sensor.

DPFEGR circuit short to PWR.

SIG RTN circuit open.

Damaged PCM.

Possible solution A DPF EGR PID reading greater than 4.5 volts with the key ON and engine OFF or running indicates a hard fault.

You will need to get the parts from the dealer.

What engine?

the EGR valve is generally located on the backside of the intake plenum near the throttle body. There will be a metal pipe that goes in between the EGR valve and the exhaust manifold. If you follow that pipe you will run into to rubber looking hoses. the DPFE sensor will be on the other end of those two hose. The hoses are two different diameters as well as the fittings that they attach to. Make sure you have the right hose going to the right fitting.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

On 1995 Crown Victoria the EGR valve is located at the rear of the engine compartment. While the attaching bolts can be gotten out with a little bit of a problem the egr tube that atteches the EGR valve to the right exhaust manifold is a pain. It is possible to do though. Here are the removal and installation instructions. If you are sure that the EGR valve is the reason for any check engine light then you can remove the battery cable for about five minutes to reset the light, but if the light is on for a differant reason then you just got rid of the code plus any freeze frame data that a shop could have used to diagnose the problem.

Check this procedure about REMOVAL & INSTALLATION...

PFED Sensor
See Figures 9, 10, 11 and 12



Fig. 9: Detach the connector for the DPFE sensor



Fig. 10: Matchmark and remove the vacuum hoses for the DPFE sensor and ...



Fig. 11: ... remove the retaining nuts from the DPFE sensor and ...



Fig. 12: ... remove the DPFE sensor from the intake manifold

1. Disconnect the negative battery cable.
2. Label and disconnect the wiring harness from the DPFE sensor.
3. Label and disconnect the vacuum hoses.
4. Remove the mounting screws and remove the DPFE sensor.
   

To install:

1. Position the DPFE sensor and tighten the mounting screws.
2. Attach all necessary hoses and wiring to the sensor.
3. Connect the negative battery cable.

EGR Valve Control Solenoid
See Figures 13 through 17



Fig. 13: Detach the connector for the EVR solenoid



Fig. 14: Match mark the vacuum hoses for the EVR solenoid and ...



Fig. 15: ... remove the vacuum hoses from the EVR solenoid



Fig. 16: Remove the retaining nut for the solenoid and ...



Fig. 17: ... remove the solenoid from the intake manifold

1. Disconnect the negative battery cable.
2. Label and detach the vacuum hoses from the EVR solenoid.
3. Detach the electrical connector from the solenoid.
4. Remove the retaining hardware, and remove the solenoid.

To install:

1. Position the solenoid and install the retaining hardware.
2. Attach the main emission vacuum control connector and the wiring harness connector to the EVR solenoid.
3. Connect the negative battery cable.

continue...

P1400 - DPFE (Differential Pressure Feedback Electronic) Sensor circuit Low Voltage

The DPFE sensor is usually not hard to change. There are 2 small rubber hoses that run from the EGR tube to it...



Replace DPFE sensor, reset engine fault codes. The Ford one is a good one and rockauto.com carries Airtex. Sometimes I hear that this change always need replace EGR valve to delet all codes. Test it.

Good luck.

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

Here is a list of possible causes for a PO401, hope this helps.

• 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

The DPFE (Diferential Pressure Sensor)sensor is usually mounted on the engine and is connected to the pipe that runs from the exhaust manifold to the EGR valve with two rubber hoses. When the sensor goes bad, the Check Engine light comes on and typically sets any or all of teh following fault codes: P0171 & P0174 (lean codes), and/or P0401 (insufficient EGR flow). Nine out of ten times, the fault is not a bad EGR valve or a vacuum leak, but a bad DPFE sensor. A replacement costs about $112 at Ford, or about $48 at an aftermarket auto parts store.I hope this helps.