No pull at low revs
Posted: Thu Jul 02, 2020 12:25 am
Hey All
Newbie to the group here.
I have an E70 X5 (2007) 3.0d with just over 100k miles on the clock and I am having some challenges with it pulling at low revs, often having to floor the accelerator until it gets over 2000 rpm and then it starts to pull properly. It had a dpf fault end of last year when the car went into limp home mode whilst on a long drive and with grey smoke coming out the back. In the end, we wound up having to be recovered. Took it to the local garage, they "cleaned" the dpf and told me to take it on a long drive at 3000 rpm to see if it regenerated - no such luck. I've been putting off sorting it for a few months, but now want to get to the bottom of it, as I'm fed up of the lack of punch.
The codes I'm getting are: 3FF0 Air Mass Flow Sensor, 452A Particulate Filter System, 4667 Particulate Filter System and 4501 Exhaust Gas Recirculation Control Deactivation. The air mass code is new, the other 3 were present from when the problem started.
I found the hidden menu in the dash tonight and took it for a quick run to see if the engine was getting up to temperature. 15 mins of high rev driving got the engine up to 80 degrees C, so don't think there's any issue with the engine getting up to temperature to run a regeneration.
A friend has offered to take the dpf off and remove the internals, then code out the faults, but I wanted to explore other options first if there is an easier solution.
Thanks for taking the time to read my first post and any help would be massively appreciated.
PS - once upon a time I served my time with Audi, however left the trade shortly after finishing my studies. Although this was some 15 years ago, I do still have a reasonable working knowledge of how cars are put together.
Cheers,
Ben
Newbie to the group here.
I have an E70 X5 (2007) 3.0d with just over 100k miles on the clock and I am having some challenges with it pulling at low revs, often having to floor the accelerator until it gets over 2000 rpm and then it starts to pull properly. It had a dpf fault end of last year when the car went into limp home mode whilst on a long drive and with grey smoke coming out the back. In the end, we wound up having to be recovered. Took it to the local garage, they "cleaned" the dpf and told me to take it on a long drive at 3000 rpm to see if it regenerated - no such luck. I've been putting off sorting it for a few months, but now want to get to the bottom of it, as I'm fed up of the lack of punch.
The codes I'm getting are: 3FF0 Air Mass Flow Sensor, 452A Particulate Filter System, 4667 Particulate Filter System and 4501 Exhaust Gas Recirculation Control Deactivation. The air mass code is new, the other 3 were present from when the problem started.
I found the hidden menu in the dash tonight and took it for a quick run to see if the engine was getting up to temperature. 15 mins of high rev driving got the engine up to 80 degrees C, so don't think there's any issue with the engine getting up to temperature to run a regeneration.
A friend has offered to take the dpf off and remove the internals, then code out the faults, but I wanted to explore other options first if there is an easier solution.
Thanks for taking the time to read my first post and any help would be massively appreciated.
PS - once upon a time I served my time with Audi, however left the trade shortly after finishing my studies. Although this was some 15 years ago, I do still have a reasonable working knowledge of how cars are put together.
Cheers,
Ben