14 E250 CEL on, then off - DPF code
MBWorld Fanatic!
Joined: Jan 2009
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From: V E G A S
1922 Ford Model T / no OBD
I smog it 2 months ago just before DPF delete, so have 10 months.
From all the reviews, the sniff test doesn't check particles. so the car should pass. The only difference I see after delete is that smog readiness shows DPF "not applicable" so in states they plug scanners that might create issue, but they don't plug Nevada.
From all the reviews, the sniff test doesn't check particles. so the car should pass. The only difference I see after delete is that smog readiness shows DPF "not applicable" so in states they plug scanners that might create issue, but they don't plug Nevada.
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From: Montreal/Cape Coral FL
2012 X6 35i Sport, 2013 ML 350 BT, 2019 4Runner TRD Pro, 2020 CRV-AWD
More and more of us on the site are doing the DPF/DEF/EGR delete. I did mine back in November after losing my DEF and EGR under warranty, which expired in September.
Junior Member
Joined: Jan 2019
Posts: 20
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2014 E250
My 2014 E250 runs great. I hope keeping filters and oil fresh and clean I can get a lot of miles out of the car and push emission issues way down the road.
Watching my Scangauge I can see my car just did a regen cycle. Once scangauge showed 100% monitoring the DPF, the car started a regen that lasted about 12 min. Oil temp went up about 6 degrees during regen. DPF dropped back to zero, and oil temp dropped as soon as regen turned off. Over the last few weeks using the scangauge I noticed very short regen cycles as I drove up hills. These short regens never seemed to do much.
Watching my Scangauge I can see my car just did a regen cycle. Once scangauge showed 100% monitoring the DPF, the car started a regen that lasted about 12 min. Oil temp went up about 6 degrees during regen. DPF dropped back to zero, and oil temp dropped as soon as regen turned off. Over the last few weeks using the scangauge I noticed very short regen cycles as I drove up hills. These short regens never seemed to do much.
MBWorld Fanatic!
Joined: Jan 2009
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From: V E G A S
1922 Ford Model T / no OBD
Would technician notice the scanner showing DPF as "not applicable" that might be good question.
They also should do visual check for EGR and DPF delete, but when I was smogging diesels in CA the young guys had no clue what they are looking at.
Now in Nevada we have annual sniff tests on the rolls, but they don't plug OBD.
Would you think those states are in different countries?
Senior Member
Joined: Dec 2016
Posts: 343
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E250 Diesel
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Senior Member
Joined: Dec 2016
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E250 Diesel
just following up here. The other day, I got CEL with the following codes P2A0086 and P24AFFA. Dealer said internal electrical fault in soot particulate sensor and replaced the soot particulate sensor. No CEL today. Hope this isn't the beginning of something more sinister........
Last edited by mellonc; Dec 13, 2019 at 11:56 AM.
Senior Member
Joined: Dec 2016
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E250 Diesel
I found this thread regarding the soot sensor.... https://mbworld.org/forums/glk-class...-warranty.html
MBWorld Fanatic!
Joined: Jan 2009
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From: V E G A S
1922 Ford Model T / no OBD
Looks like what is sold as Nox sensor for some models is sold as soot sensor for others.
Either way, there is no sensor who would actively measure soot level. It is all calculated from other parameters.
Either way, there is no sensor who would actively measure soot level. It is all calculated from other parameters.
Newbie
Joined: Jan 2026
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Toyota RAV4
That intermittent CEL with a DPF code can definitely be frustrating, especially when the light goes off on its own. Sometimes it points to a partial regeneration issue, a tired sensor, or driving patterns not allowing a full regen cycle to complete. I had something similar and started keeping notes on drive lengths and warning lights using a small log I call sallimoservice, which actually helped spot a pattern. Have you noticed if the light comes on more after short trips or city driving?
