Volkswagen DTC P1563 – Quantity Adjuster Lower Stop Value
DTC P1563 meaning on Volkswagen
DTC P1563 on a Volkswagen refers to the Quantity Adjuster Lower Stop Value. This diagnostic trouble code indicates that the engine control module has detected an issue with the lower stop value of the quantity adjuster, which is responsible for regulating the amount of fuel delivered to the engine.
Volkswagen DTC P1563 symptoms
Symptoms of DTC P1563 on a Volkswagen may include rough idling, decreased engine performance, poor fuel efficiency, and potentially stalling or hesitation during acceleration.
Volkswagen DTC P1563 causes
The most common causes of DTC P1563 on a Volkswagen include a faulty quantity adjuster, wiring issues, a malfunctioning fuel pressure regulator, or a problem with the fuel injectors.
Volkswagen DTC P1563 seriousness
DTC P1563 should be addressed promptly as it can lead to poor engine performance, reduced fuel efficiency, and potential drivability issues. Ignoring this code may result in further damage to the engine components.
How to diagnose DTC P1563 on Volkswagen
To diagnose DTC P1563 on a Volkswagen, a mechanic would typically use a diagnostic scanner to retrieve the trouble codes stored in the engine control module. They would then perform a visual inspection of the quantity adjuster, wiring, and fuel system components to identify any visible issues. Additionally, testing the quantity adjuster and related components using specialized tools may be necessary to pinpoint the exact cause of the fault.
How to fix DTC P1563 on Volkswagen
Fixing DTC P1563 on a Volkswagen may involve replacing the faulty quantity adjuster, repairing any damaged wiring, addressing issues with the fuel pressure regulator or fuel injectors, and ensuring proper calibration of the quantity adjuster. It is recommended to follow the manufacturer’s diagnostic and repair procedures to resolve this code effectively.
How to erase DTC P1563 on Volkswagen
Once the underlying issue causing DTC P1563 on a Volkswagen has been fixed, the diagnostic trouble code can be erased using a diagnostic scanner. By clearing the code, the engine control module will reset and monitor the system for any recurring faults. It is important to verify that the repair was successful by performing a test drive and rechecking for any stored trouble codes.
Recommended tools for Volkswagen diagnostics
Explore our expert picks: The Best OBD2 Scanners for 2025
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.