Hey All,
Newbie to auto work here asking some basic questions to help me diagnose the issue. I've read a few threads on this and reasearched the mechanics at play, but can use advice and tips for next steps.
I have a 2006 Fiat Doblo 1.3 multijet (mk1/119). The DPF has clogged twice on me now, leading to poor power, and stalling out on hills, and more recently not being able to get up to 70 on the motorway. I had AA to check my car twice. The first time the EGR fault was thrown (I believe it was P0400), but the EGR actuated manually with the OBD tool. The second time the EGR fault was back, even though it still triggered fine manually.
I now have MultiECUScan and can actuate the EGR fine (I hear the clicking). I also ran a test at idle, and with the pedal pressed (while in neutral) to confrim the Air flow sensor more or less reduces when the EGR is open. I can't remember the specific PIDs I monotored here.
I then was curious so attempted to remove the EGR, and really struggled to access the bolts holding the EGR on. I have the solenoid off and can confirm the EGR actualtes very easily, so it doesn't appear to be an issue there. I may have stripped a couple bolts trying to get them off (will see later when my trolley jack arrives and I'm hoping i have a better view of the bolts from underneath).
My questions:
1. Do you havea ny ideas as to what could be causing the DPF to clog? Presumably something is happening with the EGR since it keeps throwing this error. My guess is that the pipe from the EGR back to the intake manifold is clogged.
2. What tips do you have to remove the EGR so I can inspect the piping? I spent ~5 hours on this over the weekend and didn't even get one bolt off.
3. The DPF blockage is calculated at 105%. I would like to trigger a manual regeneration, but this fails (I've read the threshold for the manual regeneration is 105%). Is the only option to take this in for professional cleaning?
*Edit: To add context, the most recent time this occurred was on a long trip with 4+ hours of motorway driving. Since I've had DPF issues in the past, I will regularly blast it on the motorway in 4th pushing the RPMs up to trigger the regeneration. It looks like the regeneration has been failing as the oil level is very high, with an oil change taking place just a week before this long trip.
Newbie to auto work here asking some basic questions to help me diagnose the issue. I've read a few threads on this and reasearched the mechanics at play, but can use advice and tips for next steps.
I have a 2006 Fiat Doblo 1.3 multijet (mk1/119). The DPF has clogged twice on me now, leading to poor power, and stalling out on hills, and more recently not being able to get up to 70 on the motorway. I had AA to check my car twice. The first time the EGR fault was thrown (I believe it was P0400), but the EGR actuated manually with the OBD tool. The second time the EGR fault was back, even though it still triggered fine manually.
I now have MultiECUScan and can actuate the EGR fine (I hear the clicking). I also ran a test at idle, and with the pedal pressed (while in neutral) to confrim the Air flow sensor more or less reduces when the EGR is open. I can't remember the specific PIDs I monotored here.
I then was curious so attempted to remove the EGR, and really struggled to access the bolts holding the EGR on. I have the solenoid off and can confirm the EGR actualtes very easily, so it doesn't appear to be an issue there. I may have stripped a couple bolts trying to get them off (will see later when my trolley jack arrives and I'm hoping i have a better view of the bolts from underneath).
My questions:
1. Do you havea ny ideas as to what could be causing the DPF to clog? Presumably something is happening with the EGR since it keeps throwing this error. My guess is that the pipe from the EGR back to the intake manifold is clogged.
2. What tips do you have to remove the EGR so I can inspect the piping? I spent ~5 hours on this over the weekend and didn't even get one bolt off.
3. The DPF blockage is calculated at 105%. I would like to trigger a manual regeneration, but this fails (I've read the threshold for the manual regeneration is 105%). Is the only option to take this in for professional cleaning?
*Edit: To add context, the most recent time this occurred was on a long trip with 4+ hours of motorway driving. Since I've had DPF issues in the past, I will regularly blast it on the motorway in 4th pushing the RPMs up to trigger the regeneration. It looks like the regeneration has been failing as the oil level is very high, with an oil change taking place just a week before this long trip.
- Model
- Fiat Doblo 1.3 Multijet (mk1,119)
- Year
- 2006
- Mileage
- 98000
Last edited:
