Hi all,

 

This morning on start up my 1.6CR Octavia showed the above light along with fault code P2454 - Diesel Particulate Filter Pressure Sensor "A" Circuit Low.

 

Now forgive me if im wrong but does this just mean i need to regen the dpf, or soes it mean the sensor that monitors the ash content is dud.

 

If its the former then fine but im a little annoyed as i think its only the result of me trying to be extra frugal with fuel (high 60's for the past two tanks) as for 5 months before i never had any build up as confmed by VCDS. If its the latter then am i right in thinking its a straight forward job to replace the sensor and its just two vacuum tubes and a connector?

 

Im welcome to any other ideas too.

Same fault here...

 

http://www.briskoda.net/forums/topic/324424-scout-exhaust-gas-pressure-sensor-fault-p2454/

 

I checked the Ross Tech fault code library, P2454 isn't listed, but P2453 is...

 

http://wiki.ross-tech.com/wiki/index.php/18885/P2453/009299

 

Everything is pointing to a duff sensor or dodgy wiring.

 

Either way you should get it fixed ASAP. With the sensor fault the DPF won't be regenerating which will eventually cause issues with the DPF itself.

Thanks. I went for an Italian tuneup and the light did dissapear but I think for peace of mind I'll order a new one on Thursday when I get paid.

The only difference between p2454 and p2453 is circuit low and implausible signal at the end. Both I think mean the ECU thinks something is up.

Eml light came in n today with p2453 code. Almost certainly the sensor so picking one up from euro car parts tomorrow for £38.