Can anyone tell me what exactly triggers an active dpf regeneration to occur? (2008 Ford Focus 1.6 TDCI) I've noticed (using forscan) that the dpf is regenerating approx every 100 miles. This seems very excessive especially considering the differential dpf pressure is well within the acceptable range when these regens are kicking off. The PCM registers the P2459 code when it detects that the exhaust pressure didn’t hit the right level or if the passive regeneration process didn’t follow the programmed frequency. The P2459 code can be caused by a bad DPF pressure sensor, a restricted DPF or exhaust system, accumulated soot, circuit problems, or an issue with the PCM.
Ford, in their infinite wisdom (?) seem to have changed from using a DP sensor with two hoses to the DPF, to a pressure sensor with just one hose. I can only guess that it is a gauge pressure sensor, and they are assuming the outlet pressure of the DPF is near atmospheric pressure, just a bit of back pressure from the muffler & pipe, that can
I'm having a heap of issues, notably low power in low revs and failure to start after filling up with petrol. The only thing I can think of is the purge valve is stuck on, not closing fully, or has a leak (most likely). There are 3 sensors associated with the DPF that are used to feed information back to the CDI control unit* (N3/9). The two listed above in post #2, plus the Exhaust back pressure sensor (B60) which is located at the rear of the engine. This monitors the DPF fill level for protection of the turbine & the engine.

Howdy folks Been away for a long time and I will update the forum as to why and whats happened the last few months to cause my disappearance in due course. For now though I have an issue with the mondeo that needs urgent attention. Please can anyone help in locating the sensor for the dpf on a 2.

Hey all, after some advice for my 2010 MK4 Mondeo 2.0l diesel. Got a 'diesel filter overloaded' fault come up so changed dpf pressure hoses as thought they were split (had the same issue 5 years ago which changing the hoses fixed problem). Still come up with same fault, put dpf cleaner in fuel and ended up burning a hole in dpf.

google search "6.7 Coffee Table Book". page 79 shows where they are along the frame/DPF. If i remember correctly Bank 1, Sensor 2 is between the DOC and SCR. it would be the second sensor from the front (front being where the down pipe flange is). 2012 F250 Lariat CCSB SRW: H&S XRT w/ Gearheads tunes, Edge CTS, 5" FLO PRO DP Back w/ Muffler.

This diagnostic trouble code (DTC) is a generic powertrain code, which means that it applies to all 1996-newer vehicles (Ford, Dodge, GMC, Chevrolet, Mercedes, VW, etc.). Although generic, the specific repair steps may vary depending on make/model. When I encounter a code P2453, I have discovered that the powertrain control module (PCM) has MCM4E.
  • uhe87njx39.pages.dev/574
  • uhe87njx39.pages.dev/95
  • uhe87njx39.pages.dev/895
  • uhe87njx39.pages.dev/747
  • uhe87njx39.pages.dev/883
  • uhe87njx39.pages.dev/292
  • uhe87njx39.pages.dev/332
  • uhe87njx39.pages.dev/109
  • uhe87njx39.pages.dev/437
  • uhe87njx39.pages.dev/183
  • uhe87njx39.pages.dev/487
  • uhe87njx39.pages.dev/124
  • uhe87njx39.pages.dev/829
  • uhe87njx39.pages.dev/520
  • uhe87njx39.pages.dev/202

    • ford mondeo dpf pressure sensor location