53 – Subaru 1983 – 1988 Carbureted models DTC

Subaru 1983 – 1988 Carbureted models DTC 53 – Fuel pump circuit or Altitude compensator switch

DTC 53 meaning on Subaru 1983 – 1988 Carbureted models

DTC 53 on Subaru 1983 – 1988 Carbureted models indicates a fault in the fuel pump circuit or altitude compensator switch.

Subaru 1983 – 1988 Carbureted models DTC 53 symptoms

1. Engine stalling or hesitation during acceleration.

2. Difficulty starting the vehicle.

3. Poor engine performance, especially at higher altitudes.

Subaru 1983 – 1988 Carbureted models DTC 53 causes

1. Faulty fuel pump.

2. Malfunctioning altitude compensator switch.

3. Wiring issues in the fuel pump circuit.

Subaru 1983 – 1988 Carbureted models DTC 53 seriousness

DTC 53 can lead to engine performance issues, stalling, and starting problems. It is important to address this code promptly to avoid potential safety hazards and further damage to the vehicle.

How to diagnose DTC 53 on Subaru 1983 – 1988 Carbureted models

1. Use a scan tool to retrieve the trouble codes and identify DTC 53.

2. Check the fuel pump for proper operation and fuel delivery.

3. Inspect the altitude compensator switch for any signs of damage or malfunction.

4. Test the wiring in the fuel pump circuit for continuity and proper connections.

How to fix DTC 53 on Subaru 1983 – 1988 Carbureted models

1. Replace the fuel pump if it is found to be faulty.

2. Replace the altitude compensator switch if it is malfunctioning.

3. Repair any damaged or corroded wiring in the fuel pump circuit.

4. Clear the trouble codes using a scan tool after the repairs are completed.

How to erase DTC 53 on Subaru 1983 – 1988 Carbureted models

To erase DTC 53 on Subaru 1983 – 1988 Carbureted models, use a scan tool to clear the trouble codes from the vehicle’s computer. Ensure that the underlying issue causing the code has been addressed and resolved before clearing the code.

Recommended tools for Subaru 1983 – 1988 Carbureted models 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.