What does the Buick exhaust camshaft position performance fault mean?
2 Answers
Buick exhaust camshaft position system performance fault is reported because the camshaft timing is not set correctly, briefly described as timing too early or system performance. After the vehicle fault is eliminated, the fault code needs to be cleared. When clearing the fault code, it must be strictly carried out according to the fault code clearing method specified for the specific model, and the method of removing the negative terminal of the battery to clear the fault code must not be used arbitrarily. Introduction to Buick: 1. Brand positioning: Buick is a mid-to-high-end automobile brand marketed by General Motors in the United States, Canada, and China. It is sold in North America, China, CIS countries, and the Middle East. 2. Well-known models: Buick includes many well-known models: Buick Excelle, Buick Excelle GT, Buick Verano, Buick Envision, Buick Regal, Buick LaCrosse, Buick Encore, Buick Encore GX, Buick Envision, Buick Envision S, Buick Envision Plus, Buick Enclave, Buick GL6, Buick GL8 Land Business Class, GL8-ES Land Luxury, Velite 6, Velite 7, and the high-end sub-brand Avenir.
This fault code indicates an issue with the exhaust camshaft position on your Buick. The camshaft controls the opening and closing timing of the engine's exhaust valves, and if the position sensor provides inaccurate readings or loses signal, it signifies a performance fault. Common causes may include sensor contamination or aging leading to poor contact, wiring short circuits, or malfunctioning engine control modules. When repairing the car, I found that once this issue occurs, the engine performance deteriorates—such as rough idling, sluggish acceleration, and significantly increased fuel consumption. In Buick models, especially older ones, this sensor is prone to failure due to high-temperature conditions. If the dashboard warning light comes on, don't delay—take it to a professional repair shop immediately for a full diagnosis to check whether the sensor needs cleaning or replacement, avoiding the risk of further engine damage from prolonged neglect.
