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2011 1.6 tdi pdf issues

Feb 13, 2020
Hey guys, hopefully this should be a fairly straightforward one for you knowledgeable lot. My girlfriends 1.6 tdi has gone into limp mode with the coil, dpf and CEL, lights on. The code that comes up is P2458 DPF regeneration duration. I have used vcds to force a regeneration of the DPF and drove it into work tonight, about 25 miles 20 on the motorway. I ran the advanced measuring values whilst driving and met all the criteria for a regeneration to occur, but it just didn't start, all that happened was that the soot levels increased! After doing a little more research I've read it could be the DPF pressure sensor so I've just been to check that using vcds and got these results

Key out engine off n/a
Key in ignition on 0.0
Engine on 0.0

So surely that means that there's a fault with the sensor unless I'm mistaken and have missed something? Any help would be very much appreciated. Thanks for reading

P.S also posted in vcds fourm


Away washing the car
I had the reverse problem of this some time ago. The car wouldn’t go out of dpf regen mode, it just burnt through fuel for fun. It was to down to the dpf pressure sensor. Not a hard job to change it, it’s bolted to the firewall behind the airbox. I was having issues with my egr at the same time so just ended up getting it all mapped out/rid of
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Feb 13, 2020
Cheers, ill have a look for it in the morning. My mrs had her EGR done recently and its not really been the same since to be honest. I thought the constant reading of 0.0 must mean something was wrong with it as surely there should be some flow/vacum through it at idle.

thanks again :)
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