What are the symptoms of a faulty crankshaft sensor in a Hyundai Verna?
2 Answers
Modern Verna crankshaft sensor failure symptoms include: no high voltage, no fuel injection, failure to start the car, and the engine fault light on the dashboard illuminating. The inspection methods for the crankshaft position sensor are as follows: 1. Detection of the crankshaft position sensor resistance: Unplug its wiring connector, use a multimeter to measure the resistance between each terminal on the sensor, which should comply with the specifications in the attached table. Otherwise, it is damaged and needs to be replaced; 2. Detection of the crankshaft position sensor output signal: Unplug the wiring connector of the crankshaft position sensor. When the engine is turned, there should be pulse signal output between G1-, G2-, and G- terminals. If there is no pulse signal output, it is damaged and needs to be replaced; 3. Detection of the gap between the sensor coil and the signal rotor: Use a feeler gauge to check the air gap between the signal rotor and the sensor coil protrusion, which should be 0.2 to 0.4mm. If the gap does not meet the requirements, it is damaged and needs to be replaced.
I've been driving a Hyundai Verna for many years, and a faulty crankshaft position sensor can be a major headache. The most obvious symptom is difficulty starting the engine - sometimes the car won't start at all, with no response when turning the key. While driving, the engine may suddenly shake or stall, especially feeling underpowered during acceleration like it's being held back. Fuel consumption may also skyrocket because the faulty sensor affects fuel injection control, making the car thirstier at the pump. The check engine light on the dashboard stays on constantly as a warning. There's also unstable idling - noticeable vibrations when parked with strange engine noises. Diagnosis isn't difficult; just plug in an OBD scanner to check for code P0335 or similar, indicating sensor failure. I recommend owners check wiring harness connections early - sometimes loose connectors or dust buildup can be the simple fix, but severe cases require part replacement.
