What are the causes of Changhe Suzuki sensor failure?
2 Answers
Sensor failure may be a fixed deviation fault or a drift fault. The details are as follows: Fixed deviation fault: It mainly refers to a type of fault where the measured value of the sensor differs from the true value by a constant value, and the faulty measurement runs parallel to the fault-free measurement. Drift fault: It is a type of fault where the difference between the sensor's measured value and the true value changes over time. Sensor: A drift fault is a device or component that can sense the specified measured piece and convert it into a usable signal according to a certain law, with the output signal generally being an electrical quantity. It is usually composed of a sensitive element and a conversion element. It can sense the information being measured and transform this information into an electrical signal or other required form of information output according to a certain law, to meet the requirements of information transmission, processing, storage, display, recording, and control.
Recently, my own Changhe Suzuki had a sensor alarm issue. After struggling for a while, I found it was caused by poor wiring contact. Cars that have been driven for five or six years are most prone to wiring problems, especially those thin wires connected to sensors, as the high temperature in the engine compartment can cause them to age and become brittle. Last time after washing the car, the sensor started working intermittently, and the mechanic said it was due to moisture seeping into the connector terminals, causing poor contact. Additionally, if the sensor probe gets clogged with oil sludge, it can trigger false alarms—especially the crankshaft position sensor near the oil pan, which is particularly prone to oil contamination. If the car is out of warranty, using an aftermarket sensor is fine, but never go for cheap, unbranded products. Even a slight size mismatch can make installation impossible.
