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Old 04-10-19, 08:40 AM   #1
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Default Dpf

My wife's 307 SW (2003 HDi 110hp) has a blocked dpf. We had the codes read and the garage have told us this is what the problem is. They want 288 to refill eolys and do a forced regeneration with the proviso that the dpf may still be faulty. Given the value of the car (500 or so) and that there are other faults like a worn suspension ball joint I'm inclined to try removing the dpf and back flushing it. Or knocking a hole in it but of course that's illegal.
Will I need to reset any part of the ecu afterwards?
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Old 04-10-19, 09:14 AM   #2
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Technically as its 2003 DPF is not a legal requirement and wont be part of MOT as not all vehicles had one. If you remove DPF you will need ecu remapped.

If you have the kit to read ecu (quite cheap on ebay now kwp100 or similar) there are various members including me who will map the file for free if you send to us

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Old 04-10-19, 10:44 AM   #3
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I would try back flushing off the car using a pressure washer and if lots of gunk comes out refit and see if it makes a difference. If not then go the other route using windy1603 kind offer. But of course you will need something pipe wise to fill the gap!
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Old 05-10-19, 01:56 PM   #4
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Take off the dpf and split it apart soak it in wynns dpf cleaner then powerwash it out there is a video on YouTube if you look it up also you will have to reset the parameters of the dpf afterwards the eolys fluid is 170 for 3 liters from Peugeot dont just refill because when I done mine the bag was actually split inside the box

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Old 05-10-19, 01:57 PM   #5
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https://youtu.be/Kv01BlfqXoY
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Old 05-10-19, 06:10 PM   #6
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Doesn't the system measure the dpf? So why do I have to get the parameters reset?
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Old 05-10-19, 07:59 PM   #7
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I'm not sure why you need to reset it all I know is when mine got blocked I cleaned it and the light stayed on and the dpf wouldn't regen until I got it done
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Old 05-10-19, 09:38 PM   #8
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There is no level sensor on the additive tank so ecu does not know when its refilled and thinks tank is empty so disables additive injection and filter clogs and will not work again until counter is reset.

A 2003 car will use the original dpx42 fluid which you need 5 litres of I believe

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Old 08-10-19, 07:19 AM   #9
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I removed my dpf and windy1603 kindly mapped it out of the ecu after I sent him the file.

I physically removed it from the car and then smashed out the insides of it before refitting it.

It made the car a bit faster and more economical and I now don't have to ever worry about it again.
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Old 08-10-19, 07:45 AM   #10
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I can't find a kwp100 reader anywhere. Google doesn't seem able to find it.

I'll have a think about it. We're tempted to scrap the car given that the insurance (with a young driver ) and tax is costing us 90 a month and a bus pass is only 70.
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