Grandland X Injection Issue

Based on the symptoms you have described higher fuel consumption, reduced engine power, engine stalls at idle, and smoke during acceleration a fault within the injection system does seem plausible. Several factors could contribute to this. Has there been any recent maintenance or repair work conducted on the vehicle, specifically related to the engine or fuel system? Furthermore, could you provide additional detail as to the colour and density of the smoke? Have you observed any error messages or warning lights displayed on the instrument panel?

Thanks for the quick reply! No recent work on the engine or fuel system, so that’s not it. The smoke is kind of black-ish, not super thick but definitely noticeable. And yes, the engine warning light is on, it has been for a while, but I thought it was just a sensor issue. Could it really be the injection system causing all this?

Acknowledged. The presence of black smoke, coupled with the illumination of the engine warning light, reinforces the possibility of a defective injection system. Specifically, black smoke suggests an incomplete combustion process, potentially due to an improper air-fuel mixture. While a faulty sensor could contribute to the issue, the confluence of symptoms suggests a more comprehensive problem. Given the complexities inherent in modern injection systems, a diagnostic evaluation is necessary. Therefore, it is advisable to have your vehicle examined by a qualified technician at a reputable service facility. They will possess the appropriate diagnostic tools and expertise to accurately assess the issue and recommend the most effective resolution.

Okay, thanks so much for your help! I took it to a local mechanic, and you were spot on. Turns out it was a defective cable / plug connection to the injector. Cost me 95€ to get it sorted. Runs like new again!