S40 (New) Engine 2.0D : - DPF differential pressure sensor help!!! PLEASE!!!

clarksonmagpie · Aug 11th, 2010, 18:46

Hi, please help. I have an 2005 S40 Diesel and keep getting the intermittent "limp-home" mode. It is very random and stopping and starting the engine often clears the problem. I have no warning lights on the dashboard and no other messages. Lately it has got worse, and the the ECU is showing the fault codes of P2452 and P2453. I have a feeling that the sensor is at fault having had a recent DPF fitted and the fuel additive topped up. I think I know the location the sensor; on the side of the battery box? I have a feeling that this sensor was tampered with prior to me buying the car. I have taken a picture of the sensor itself where the attached electrical connections are suspiciously wrapped in black electrical tape - clearly not a factory fit. I believe the sensor may be at fault. Could someone please verify that this in indeed the pressure sensor I am looking at and perhaps provide a photograph of how the electrical terminal connection should look without electrical tape on it.
The sensor looks easy enough to replace, but does the ECU need any software fettling once a new one is fitted? Many thanks in advance.

grass hopper · Aug 11th, 2010, 19:59

that is the sensor and they do come with black tape wrapped around the connector from new !

there are modifies sensors with pipes which will stop the code and limp home mode.

the fault with the old sensor will be moisture travelling up the pipes into the sensor.

clarksonmagpie · Aug 11th, 2010, 20:05

Where can I get a modified sensor from?

grass hopper · Aug 11th, 2010, 20:10

i would think only Volvo would be able to supply,been a few years since i changed them,but should get new pipes with them.

bishopconkers · Feb 7th, 2012, 12:19

Does anyone know what the part number is for the modified sensor?

PeeweeTx · Feb 7th, 2012, 20:56

I am having the same problem with my 1.6d did a new sensor fix your problem.

Doveaboy · Feb 8th, 2012, 09:18

Surely if you've only recently had a new dpf and fluids top-up, your first option should be to take it back to the garage that did the work. What if it's a fault with their work. Fiddling about first with any part of that system on your own is surely a mistake

7050man · Feb 9th, 2012, 08:35

1. Take off the old sensor.

2. look at the part number stamped on the moulding

3. ring locall Ford dealer and ask if they have one in and then go and collect.

4. Refit and then drive car for abouit 20 miles under a variaety of conditions.

5. Resrat engine and it should be fine.

matt182 · Feb 9th, 2012, 16:12

volvo part number is 30757189 for the sensor. i put new pipes and a new sensor on 2 years ago, first one failed in 6months and replacement has gone again. very poor design from ford.

Clan · Feb 9th, 2012, 19:18

Quote:

Originally Posted by matt182

volvo part number is 30757189 for the sensor. i put new pipes and a new sensor on 2 years ago, first one failed in 6months and replacement has gone again. very poor design from ford.

I agree , like many many leftovers from the ford era . The only problems volvos have now are the ones FORD left us with ..

Aug 11th, 2010, 19:59	#2
grass hopper Premier Member Last Online: Mar 18th, 2011 13:38 Join Date: May 2009 Location: grassmere!	that is the sensor and they do come with black tape wrapped around the connector from new ! there are modifies sensors with pipes which will stop the code and limp home mode. the fault with the old sensor will be moisture travelling up the pipes into the sensor. __________________

Aug 11th, 2010, 20:10	#4
grass hopper Premier Member Last Online: Mar 18th, 2011 13:38 Join Date: May 2009 Location: grassmere!	i would think only Volvo would be able to supply,been a few years since i changed them,but should get new pipes with them. __________________

Aug 11th, 2010, 20:05	#3
clarksonmagpie New Member Last Online: Nov 26th, 2011 21:42 Join Date: Jul 2010 Location: Stowmarket	Where can I get a modified sensor from?

Feb 7th, 2012, 12:19	#5
bishopconkers New Member Last Online: Jan 22nd, 2014 09:52 Join Date: Feb 2012 Location: Trollhattan	Does anyone know what the part number is for the modified sensor?

Feb 7th, 2012, 20:56	#6
PeeweeTx PeeweeS40 Last Online: Apr 1st, 2013 20:21 Join Date: Jan 2012 Location: Liverpool	I am having the same problem with my 1.6d did a new sensor fix your problem.

Feb 8th, 2012, 09:18	#7
Doveaboy Junior Member Last Online: Oct 13th, 2012 18:29 Join Date: Sep 2011 Location: Bristol	Surely if you've only recently had a new dpf and fluids top-up, your first option should be to take it back to the garage that did the work. What if it's a fault with their work. Fiddling about first with any part of that system on your own is surely a mistake

Feb 9th, 2012, 08:35	#8
7050man Master Member Last Online: Jan 25th, 2019 17:19 Join Date: Feb 2006 Location: Kent	1. Take off the old sensor. 2. look at the part number stamped on the moulding 3. ring locall Ford dealer and ask if they have one in and then go and collect. 4. Refit and then drive car for abouit 20 miles under a variaety of conditions. 5. Resrat engine and it should be fine.

Feb 9th, 2012, 16:12	#9
matt182 VOC Member Last Online: Mar 26th, 2024 10:49 Join Date: May 2007 Location: CARDIFF	volvo part number is 30757189 for the sensor. i put new pipes and a new sensor on 2 years ago, first one failed in 6months and replacement has gone again. very poor design from ford.

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