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Dpf needs empting - Land Rover Cars & Trucks

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Why does my 2009 VW Crafter do a DPF burn off with out giving me any sort of warning signal on the instrument panel


DPF sucks.
id take it to VW, to get this magic diesel smog crappppp fixed.
good luck.
ps. it fueling wrong, and DPF, is not it.
DPF only works right when all else is.

Jul 19, 2014 | 2007 Volkswagen Pickup 1.6

1 Answer

Have a 2008 f450 and the exhaust system was just cleaned it still has no power and will not go over 25 mph it said to drive to clean dpf


To clean the DPF, the vehicle needs to be driven at 50-60 mph for an uninterrupted minimum time of 15 minutes. (Motorway?). If it won't go over 25mph that's a problem. You need a garage that has computer software, that can put the vehicle into forced regeneration. Other option is to have the DPF removed and the ECU reprogrammed, but there is a question about the legality of doing that.

Jan 02, 2014 | 2008 Ford F 450 Super Duty

2 Answers

I have a scan tool that says my egr valve system not ready on my Ford f150 5.4 and my catylist reads not ready how can I fix this problem


ABout EGR codes, there are alot choive to look or diagnostic... are you chec or replace the vacuum lines as well? If there is a leak, the DPFE will read incorrectly.

Did you reset the PCM or disconnect the battery after the repair? Assuming all fuses are good, the P1401 indicates a possible wiring fault. Check the connector. Is it clean? Is it pushed in all the way? Are the wires in good condition?

Since the DPFE has been replaced, likely there is a restriction in the EGR line some where. This could also be a bad EGR valve. But first ensure that the EGR valve vacuum line is attached and leak free.

If no problem found, then the EGR passageways in the throttle body should be cleaned. Carbon will build up and block the EGR flow.

If still no problem found, consider replacing the EGR valve.

Keep in mind this information from Ford Service CD...

P0401 - EGR Flow Insufficient Detected
The EGR system is monitored during steady state driving conditions while the EGR is commanded on. The test fails when the signal from the DPF EGR sensor indicates that EGR flow is less than the desired minimum.
Vacuum supply
EGR valve stuck closed
EGR valve leaks vacuum
EGR flow path restricted
EGRVR circuit shorted to PWR
VREF open to D.P.F. EGR sensor
D.P.F. EGR sensor downstream hose off or plugged
EGRVR circuit open to PCM
VPWR open to EGRVR solenoid
D.P.F. EGR sensor hoses both off
D.P.F. EGR sensor hoses reversed
Damaged EGR orifice tube
Damaged EGRVR solenoid
Damaged PCM

Perform KOER self-test and look for DTC P1408 as an indication of a hard fault. If P1408 is not present, look for contamination, restrictions, leaks, and intermittents

P1401 - DPF EGR Sensor Circuit High Voltage Detected
The EGR monitor checks the DPF EGR sensor signal to the PCM for high voltage. The test fails when the average voltage to the PCM goes to a voltage greater than the maximum calibrated value.
DPF EGR circuit open
VREF short to PWR
Damaged DPF EGR sensor
DPFEGR circuit short to PWR
SIG RTN circuit open
Damaged PCM

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


Hope this helps (remember to rate and send us your comments about this answer).

May 22, 2011 | 2001 Ford F150 Styleside SuperCrew

1 Answer

I have a DPF light that despite following the Suzuki guideliness to drive at certain speed for a certain amount of time, this light has not cleared. I have already had a sensor in the exhaust replaced that...


A diesel particulate filter (DPF) collects particulates in the engine's exhaust, basically unburned fuel. Every so often the DPF will need to regenerate. What this means is when a certain amount of particulates accumulate in the DPF, a small amount of raw fuel is injected into the DPF to increase the temperature. The increased heat burns the particulates resulting in fewer nasty things going into the atmosphere. However, the regeneration process leaves a small amount of ash in the DPF which accumulates over time. You may have to have the DPF professionally cleaned (it's not a DIY thing) in order to restore its performance.

Mar 19, 2011 | Suzuki Grand Vitara Cars & Trucks

1 Answer

Need to find out what the emissions read P1401


P1401 - DPFE Circuit High Input

Description Of The Code:
The EGR monitor checks the DPF EGR sensor signal to the PCM for high voltage. The test fails when the average voltage to the PCM goes to a voltage greater than the maximum calibrated value.

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.

    Jan 14, 2011 | 2001 Chevrolet Venture

    2 Answers

    Jaguar S Type, DPF light will not go out even though it has been replaced


    it doesn't rave to ignite and clean the exhaust system even though i press the dpf button

    Jan 02, 2011 | 2005 Jaguar S-Type

    2 Answers

    P0471 and p2002 codes, Audi A6 2.0 DPF S-Line Auto


    The DPF is designed to be self-cleaning to a certain extent if the engine is run for a good length of time the deposits should burn off. I would kick up a fuss with Audi about the warranty, ask them to show its exclusion. Unless the DPF has become physically damaged by something you have done then they need to have it fixed as it is a result of the deficiency in their design. This is not like some damaged tyre, open to abuse by the driver, the DPF is integral to the vehicle operation and through no commission on your part it is not functioning as it should.

    Jul 27, 2010 | 2008 Audi A6

    2 Answers

    Are there catalytic converters fitted on 406 2.0l


    Its a dpf not a cat.Easy way to clean out[regenerate]First bring the engine to normal temp bring up the rpm to 4000 for 2 mins,then allow to idle for 30 seconds then bring the rpm up to 3000 rpm for 3 mins and yourfilter will have regenerated [fancy word for clean itself out. DPF = diesel particulate filter.Its important to use good quality low ash oil for your oil changes.

    Mar 03, 2010 | 2005 Peugeot 405

    1 Answer

    I believe the corrected code should be 402.


    DTC P0402 means that the OBD has detected a excessive amount of egr gases in the system. The EGR system has three major parts in it, The EGR valve, an actuator solenoid, and a differential pressure sensor (DPF). P0402 was triggered by one of the following, The DPF is faulty and needs to be replaced. There is a blockage in theEGR valve from carbon build up and needs to be cleaned or replaced. The EGR valve is faulty Lack of vacuum to the EGR to opperate properly. Most will clean the EGR valve and if that does not fix the problem, check the connection to the DPF and or replace the DPF. Good luck and keep me posted. be glad to help.

    Jun 05, 2009 | 1999 GMC Jimmy

    4 Answers

    Mazda 6 oil change


    If DPF means Diesel Particulate Filter, no you don't need to change this cartridge. Somewhere near 120000Km you have to refill the additive tank with Eolys additive.

    Sep 05, 2008 | 2005 Mazda 6

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