Kizashi Fuel Sensor Causes Stalling at Idle

As a hobby mechanic with some experience, I had a very similar issue with my 2010 Suzuki Swift. The symptoms you describe match exactly what I encountered, unusual stalling and unreliable fuel gauge readings pointing to a fuel level sensor fault. The fix was actually quite straightforward. After diagnosis, it turned out the fuse controlling the fuel tank sensor circuit was defective. The repair involved replacing the blown fuse and running a complete system check to ensure no additional damage occurred. Total cost was 52€ including diagnostic time. Before jumping to conclusions though, could you share: The specific error code from your diagnostic reading, Whether your fuel gauge shows erratic readings, If the problem gets worse when fuel level is low, The mileage on your Kizashi These details would help confirm if your issue matches what I experienced. While a faulty fuse is a common and relatively inexpensive fix, fuel system issues can sometimes indicate more serious problems with the fuel pump or sensor assembly. The car sensor system is quite complex, and problems with the fuel gauge or level sensor can manifest in various ways. Getting the right diagnosis is crucial before proceeding with repairs.

Thanks for the feedback. My Kizashi has 109017KM on the clock and the fuel gauge does show erratic behavior, especially when the tank is below half full. The error code is P0463 which points to the fuel level sensor circuit. After reading your experience, I checked all fuses related to the fuel system but they appear intact. The symptoms get noticeably worse in hot weather and when fuel level drops below quarter tank. This makes me think the faulty sensor might be the root cause rather than just a fuse issue. The car electronics seem otherwise normal, with no other warning lights or issues. Since my last service was just 2 months ago, I find it odd that this wasnt caught during routine checks. I will probably need to get the entire fuel level sensor assembly replaced at this point.

Thanks for those additional details about your Kizashi. The P0463 code and symptoms you describe actually helped me remember more about my experience with the Swift. While my initial problem was fuse-related, it later developed into a full sensor issue similar to yours. After the fuse replacement, the problems returned within a few weeks. The fuel gauge readings became increasingly unreliable, particularly in warm weather. The car dashboard would show wild fluctuations, especially when the tank was below half. The level sensor eventually failed completely, requiring replacement of the entire fuel sensor assembly. The repair cost around 380€ including parts and labor. The good news is that once replaced, all issues resolved completely, no more stalling, accurate fuel gauge readings, and the check engine light stayed off. The temperature sensitivity you mentioned is a classic sign of a failing fuel level sensor. The faulty sensor can cause incorrect readings to the car computer, leading to those stalling issues at idle. Given your specific error code and symptoms, I would agree that sensor replacement is likely necessary. Remember to have the fuel tank thoroughly cleaned during the sensor replacement, as debris in the tank can contribute to sensor failure. This might explain why it wasnt caught during your recent service.

Really helpful information, especially about the tank cleaning recommendation. The error code P0463 and symptoms matching your experience gives me confidence to proceed with the sensor replacement. I got a quote today for 410€ for the complete fuel sensor assembly replacement including tank cleaning. The shop confirmed that car electronics and fuel system issues often start exactly as you described, with occasional glitches that get worse over time. Will schedule the repair next week since the stalling is becoming more frequent. The car sensor readings are now completely unreliable, showing full tank even when nearly empty. Good to know the fix should resolve both the gauge accuracy and the engine stalling issues. The mechanic also mentioned checking other related car electronics while they have the tank out, which seems sensible given the mileage. Better to catch any other potential issues while they are already doing the work.