Another dpf thread (sorry)
Posted 08 August 2018 - 09:51 AM
I have a mk8 accord with the dpf light on (it also has the !) and is in limp mode.
I tried additives to no effect.
I have taken it for a forced regen which I was told was successful but the light is still on.
The mechanic who did the regen said it was a faulty sensor.
I have since had the car to bits and have pulled the sensor which splits into 2 probes that goes to the bottom of the exhaust, this throws up an engine management light as well as dpf
I pulled the exhaust gas temperature sensor which made no difference to the already existing light on the dash.
Am I right in thinking that this would be the faulty sensor?
I also had the aa out to do a regen but it wouldnt work as I believe one of the sensors shown on his computer was reading 0 degrees.
Now, let's say theoretically (I'm aware of the new mot rules) if I was to have the dpf removed and mapped out, would this dpf light still be on due to the faulty sensor, even though the car would believe that it had no dpf?
Posted 08 August 2018 - 02:45 PM
You really need to wash the DPF professionally to get it clean, regens just burn the soot to ash which stays on the matrix.
The ecu senses the amount of pressure differential between the top and bottom of the DPF and that is calculated as soot on the matrix.
It sounds like the matrix is blocked with Ash or the sensor is no good.
Posted 09 August 2018 - 12:22 AM
I'm sure Fahad will be along eventually and there are plenty of threads on the subject. If you have the dpf removed properly, resetting and remapping would ensure the dpf light would not remain on.
Posted 15 August 2018 - 06:53 AM
Posted 15 August 2018 - 10:58 AM
Posted 15 August 2018 - 11:25 AM
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Posted 17 August 2018 - 10:22 AM