What are the solutions for the P0321 trouble code?
1 Answers
p0321 trouble code requires different solutions depending on the cause. The specific methods are as follows: 1. If it is an engine speed sensor failure, you can use a resistance meter to measure the resistance between the two pins of the sensor (the normal value should generally be between 0.7-1.2). If it exceeds the specified range, it means the sensor is damaged, and the speed sensor should be replaced at this time. The engine speed sensor is an inductive sensor used to identify the engine speed. Together with the Hall sensor, it identifies the top dead center of the first cylinder's ignition, thereby determining the fuel injection timing and ignition timing. Therefore, when the sensor fails, it is very harmful to the car. 2. If the speed sensor fails, the fault light on the car's dashboard will generally illuminate. For general faults, empirical methods can be used for inspection and troubleshooting, such as checking whether the parts are damaged, whether the wiring is broken or damaged, and whether the connectors are secure. 3. After troubleshooting the car, the trouble code needs to be cleared. When clearing the code, it is essential to follow the specified method (as per the manual) for the particular vehicle model. Do not clear the code arbitrarily without following the instructions and requirements. 4. If the problem persists after troubleshooting the wiring, the speed sensor should be replaced.
