CR V fuel consumption and power loss

Greetings. Cylinder pressure fluctuation in a diesel engine can indeed manifest in the ways you describe. However, such a symptom is rarely a root cause. It is more often a consequential error resulting from another underlying issue. Have you observed any unusual engine knocking? Has the condition of the fuel injectors been assessed, and when was the timing belt last inspected or replaced? Furthermore, have you investigated the crankshaft or piston rings for any indications of wear or damage?

Thanks for the quick response! Engine knocking? No, I haven't noticed any knocking sounds. Fuel injectors and timing belt haven't been checked recently, so I can't say for sure. Crankshaft and piston rings... that sounds pretty serious. Where would I even start to look for problems there?

Understood. The absence of knocking is useful information. Given the potential interplay of factors and the interconnectedness of engine components, an amateur diagnosis is not advisable. The prudent course of action would be a comprehensive diagnostic assessment by a qualified technician. It is conceivable that the issues you are experiencing are interrelated, or they might be independent. A mechanic can confirm. The cost, incidentally, was 0€; it turned out that the diagnostic device had a glitch.

Okay, I appreciate the advice. I took it to a mechanic as you suggested. The issue was a faulty sensor giving incorrect readings, causing the engine management system to adjust fuel delivery incorrectly. The sensor was replaced, and everything is running smoothly now. Thanks again for pointing me in the right direction!