. If "09D1" is a project ID from a specific craft site, "preparing paper" would involve printing and cutting templates. Technical Reference
With the engine off, the sensor should read 0 mmHg. At idle, it should be close to 0. At 3000 RPM, it should rise predictably. If the values are erratic or negative, replace the sensor (usually located on a metal bracket near the DPF). citroen 09d1
Many Citroen HDi engines (especially the DW10 and DV6) use an fluid additive. This fluid is injected into the fuel tank to lower the soot combustion temperature. If the Eolys tank is empty, the pump is dead, or the system hasn’t been refilled after service, regeneration will fail. the pump is dead