What is the problem my oil pressure is not coming on 1kd engine?

If the oil pressure warning light on your 1KD engine is not coming on, it could indicate a malfunction in the oil pressure sending unit, which measures the oil pressure. Alternatively, there could be an issue with the engine's oil pump or a blockage in the oil passages, leading to insufficient oil flow. It's also possible that the oil level is low, or there’s an electrical fault preventing the light from functioning properly. It’s advisable to check the oil level and consult a mechanic for a thorough diagnosis.