What Causes the Pump Current Open Circuit in Audi Cylinder Bank Oxygen Sensor?
1 Answers
Possible causes include issues with the fuel quality used or a malfunction leading to an open circuit in the front oxygen sensor. Below is more information about automotive sensors: 1. Introduction: Automotive sensors can be categorized into environmental monitoring and body sensing types. Environmental monitoring sensors detect and perceive the surrounding environment and are essential for autonomous driving. Body sensing sensors gather vehicle body information such as tire pressure, oil pressure, and speed, serving as fundamental sensors for maintaining normal, stable, and safe vehicle operation. 2. Mass Air Flow (MAF) Sensor: The MAF sensor is typically installed between the air filter and the throttle body to measure the amount of air entering the engine, converting it into an electrical signal for the ECU to use as a reference for fuel injection timing. Malfunctions can lead to rough idling, poor acceleration, increased fuel consumption, and black smoke from the exhaust, affecting engine performance. 3. ABS Sensor: The ABS sensor is usually located near the wheel bearing, outside the hub bearing and inside the brake disc, monitoring wheel speed. During hard braking, it provides wheel speed feedback to the braking system to control wheel rotation for optimal braking performance. Failure can result in ABS malfunction, causing wheel lock-up and skidding during emergency braking. 4. Throttle Position Sensor (TPS): The TPS is mounted on the throttle body to detect throttle opening. It operates via a linkage mechanism with the throttle, measuring the throttle angle's voltage signal and transmitting it to the ECU as a reference for fuel injection volume and ignition timing adjustments. Malfunctions may cause irregular engine idling, engine shaking, and delayed acceleration response.
