"Check Engine" Light and sluggish in low revs
Over the past month or so, I have noted that my 56 plate 159 1.9 diesel (just under 80k) has been a little bit unresponsive in lower revs. Fine when the foot is to the floor and nothing particularly different about the mpg.
I've been monitoring it closely, giving it a good boot around on the way to force any dirt out the back end.
At the weekend, I noticed the idle revs bouncing up and down. Not violently, but certainly more than normal.
Yesterday, I jumped in the car (with the temperature reading at over 35C!) and started up. Within about a minute, the engine management light came on. I called into a local indie garage on the way home and they hooked up the computer.
The read out gave a single error code:
P2453 - Differential Pressure Sensor Signal
A little bit of searching around lead me to believe this is an issue with:
a) the sensor itself
b) the rubber cable running from the DPF to the sensor
c) the DPF itself
or D) something else that I haven't considered.
I've jacked the car up and had a good poke around - the rubber cable appears in very decent nick and the electrical connection also seems fine. No obvious external damage to the exhaust system.
I took the car out for a good hour tonight, blasting up the A1, keeping 3,000 rpm + for the majority of the journey, but it didn't seem to enter a regen mode at all (the mpg was surprisingly good considering I was sitting at 70mph in third...). Will a DPF regen be prevented while the engine management light is on?
I suppose my main question is what is likely to be the issue, and what would you recommend? Would a DPF removal and remap be the best solution? Can anyone recommend someone who can do this in the north east?