Hi All.
Been a long time since I have been on here as the car has been running fine.
Needless to say it has now developed a problem.
For some time, on and off when it feels like it the Engine management light comes on coupled with the display showing "engine antipollution system defective"
The additive tank has been empty for some time, mainly due to the £250 to refill it. A Global test shows "permanent fault differential exhaust pressure signal. Coherence of the differential pressure when stopped"
Also a fault with the EGR pressure.
Stripped and cleaned EGR valve and plumbing, although it seems very clean.
The general opinion locally was DPF blocked, so I added some DPF cleaner to a full tank and ran it until empty.
Did a forced regen, now that's a scary process. Cleared fault codes, light out, problem solved, you would think.
Next day light back on, Global test shows the same faults.
The light goes out when it feels like it and a Global test shows the same faults but intermittent.
I have now run out of ideas.
Hoping some kind person has the time and knowledge to help me out.
Thanks in advance.
Been a long time since I have been on here as the car has been running fine.
Needless to say it has now developed a problem.
For some time, on and off when it feels like it the Engine management light comes on coupled with the display showing "engine antipollution system defective"
The additive tank has been empty for some time, mainly due to the £250 to refill it. A Global test shows "permanent fault differential exhaust pressure signal. Coherence of the differential pressure when stopped"
Also a fault with the EGR pressure.
Stripped and cleaned EGR valve and plumbing, although it seems very clean.
The general opinion locally was DPF blocked, so I added some DPF cleaner to a full tank and ran it until empty.
Did a forced regen, now that's a scary process. Cleared fault codes, light out, problem solved, you would think.
Next day light back on, Global test shows the same faults.
The light goes out when it feels like it and a Global test shows the same faults but intermittent.
I have now run out of ideas.
Hoping some kind person has the time and knowledge to help me out.
Thanks in advance.