S40 limp mode and pulsating acceleration

Hiten · Mar 25th, 2024, 22:24

Hi all,
I'm looking for some advice regarding my S40 2.0D. Since October this limp mode and pulses when I accelerate are giving me a headache. I have cleaned the dpf filter and then earlier this year I've changed it. I've also changed the differential pressure sensor. But after around 1000km, the symptoms are back.
Ran i quick diagnosis I have the following code:

ECM-242F Particle trap. Blocked
ECM-2452 Particle trap pressure sensor. Faulty signal
ECM-2456 Pressure sensor, particle filter. Signal missing
CPM-5301 Control module. Over heated

Any advice would be much appreciated.
Thanks!

IainG · Mar 26th, 2024, 07:41

Hi
When you changed the DPF did you “tell” the car it had been replaced? Did you also check the integrity of the sensing pipes from the DPF to the sensor? On mine one of the pipes was perished and leaking slightly so only a reduced pressure was being picked up. The flexible pipes do fail due to the heat. Mine looked intact but had split under the outer protective sleeve.
Does your car have EOLYS for your DPF? You don’t give the year of your car. If it does have EOLYs has it been topped up and counter reset?

https://www.volvoforums.org.uk/showthread.php?t=321183
About the pipes!!

ITSv40 · Mar 26th, 2024, 07:53

You need to post in the S40/V50/C30/C70 forum as this one only deals with S/V40 upto 2004.

Hiten · Mar 26th, 2024, 10:14

Quote:

Originally Posted by ITSv40

You need to post in the S40/V50/C30/C70 forum as this one only deals with S/V40 upto 2004.

Ah, you are correct. Mine is from 2006. I'll post there. Thank you.

Mar 25th, 2024, 22:24	#1
Hiten New Member Last Online: Mar 26th, 2024 10:14 Join Date: Mar 2024 Location: Kreuzlingen	S40 limp mode and pulsating acceleration Hi all, I'm looking for some advice regarding my S40 2.0D. Since October this limp mode and pulses when I accelerate are giving me a headache. I have cleaned the dpf filter and then earlier this year I've changed it. I've also changed the differential pressure sensor. But after around 1000km, the symptoms are back. Ran i quick diagnosis I have the following code: ECM-242F Particle trap. Blocked ECM-2452 Particle trap pressure sensor. Faulty signal ECM-2456 Pressure sensor, particle filter. Signal missing CPM-5301 Control module. Over heated Any advice would be much appreciated. Thanks!

Mar 26th, 2024, 07:41	#2
IainG Premier Member Last Online: Today 21:25 Join Date: Apr 2013 Location: Plymouth	Hi When you changed the DPF did you “tell” the car it had been replaced? Did you also check the integrity of the sensing pipes from the DPF to the sensor? On mine one of the pipes was perished and leaking slightly so only a reduced pressure was being picked up. The flexible pipes do fail due to the heat. Mine looked intact but had split under the outer protective sleeve. Does your car have EOLYS for your DPF? You don’t give the year of your car. If it does have EOLYs has it been topped up and counter reset? https://www.volvoforums.org.uk/showthread.php?t=321183 About the pipes!! __________________ V50 2005. 2.0D Last edited by IainG; Mar 26th, 2024 at 07:43.

Mar 26th, 2024, 07:53	#3
ITSv40 VOC Member Last Online: Today 21:51 Join Date: Mar 2008 Location: Northampton	You need to post in the S40/V50/C30/C70 forum as this one only deals with S/V40 upto 2004. __________________ 2001 V40 2.0lt Sport lux - Daily Driver. 174k miles. 2003 C70 2.4 GT Convertible - Garage Queen. 65k miles. http://www.neptuno6benagil.com

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