Subaru Subaru Impreza 1992-2000 Fuel System Specifications
Detailed fuel system specifications for 1992-2000 Subaru Impreza, including fuel type, tank capacity, pump pressure, and injector flow rates. Essential for maintenance, tuning, and troubleshooting.
Overview Specifications
This document provides detailed fuel specifications for the 1992-2000 Subaru Impreza. It includes information on fuel types, consumption rates, tank capacity, and emission standards. Use this guide to understand the technical aspects of the vehicle's fuel system, optimize performance, and ensure compliance with environmental regulations. The document is organized into sections for easy navigation and includes a quick reference table for key specifications.
How to Use
Use the search functionality to find specific terms or phrases within the document. Enter keywords related to fuel specifications, such as 'octane rating' or 'fuel economy,' to quickly locate relevant information.
Navigate through the document using the section titles and subsections. Each major section focuses on a specific aspect of the fuel system, with detailed points listed under each subsection for easy reference.
Key Specifications
Fuel Type
87+ Octane Unleaded
Fuel Tank Capacity
15.9 gallons
City MPG
20-22 MPG
Highway MPG
26-28 MPG
Fuel System
Multi-port Injection
Available Specifications
Fuel Types and Requirements
This section outlines the recommended fuel types for the 1992-2000 Subaru Impreza, including octane ratings and any specific requirements for optimal performance. It also covers the impact of using alternative fuels or additives.
Fuel Types and Requirements
This section outlines the recommended fuel types for the 1992-2000 Subaru Impreza, including octane ratings and any specific requirements for optimal performance. It also covers the impact of using alternative fuels or additives.
Recommended Fuel Types
- Regular unleaded gasoline with an octane rating of 87 or higher
- Premium unleaded gasoline (91+ octane) recommended for high-performance models
- Avoid using diesel or ethanol blends above 10% (E10)
- Use of fuel additives for cleaning injectors is optional but not required
Alternative Fuels
- Not compatible with E85 ethanol blends
- Biodiesel is not supported
- Propane or natural gas conversions are not recommended
- Check local regulations for any restrictions on fuel types
Fuel Economy and Consumption
This section provides detailed information on the fuel economy of the 1992-2000 Subaru Impreza, including city, highway, and combined MPG ratings. It also discusses factors that may affect fuel consumption.
Fuel Economy and Consumption
This section provides detailed information on the fuel economy of the 1992-2000 Subaru Impreza, including city, highway, and combined MPG ratings. It also discusses factors that may affect fuel consumption.
Fuel Economy Ratings
- City MPG: 20-22 MPG
- Highway MPG: 26-28 MPG
- Combined MPG: 23-25 MPG
- Actual mileage may vary based on driving conditions
Factors Affecting Consumption
- Driving habits (e.g., aggressive acceleration reduces efficiency)
- Vehicle load and cargo weight
- Tire pressure and alignment
- Environmental conditions (e.g., cold weather)
Fuel Tank and System Specifications
This section covers the technical specifications of the fuel tank and system, including capacity, materials, and maintenance requirements. It also includes information on the fuel delivery system and filters.
Fuel Tank and System Specifications
This section covers the technical specifications of the fuel tank and system, including capacity, materials, and maintenance requirements. It also includes information on the fuel delivery system and filters.
Fuel Tank Capacity
- Standard fuel tank capacity: 15.9 gallons (60 liters)
- Reserve capacity: approximately 2.5 gallons (9.5 liters)
- Material: high-density polyethylene
- Designed for durability and corrosion resistance
Fuel Delivery System
- Multi-port fuel injection system
- Fuel pump pressure: 36-43 psi
- Fuel filter replacement interval: every 30,000 miles
- Regular inspection of fuel lines for leaks or wear
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Component Specifications
Overview
- Type
- Gasoline
- Octane Rating
- 87 (regular), 91 (premium)
- Fuel System
- Multi-point fuel injection
- Tank Capacity
- 15.9 gallons (60.2 liters)
- Emission Standard
- Tier 1 (US)
Dimensions
- Tank Length
- 34.5 inches (87.6 cm)
- Tank Width
- 22.8 inches (57.9 cm)
- Tank Height
- 12.4 inches (31.5 cm)
- Filler Neck Diameter
- 1.5 inches (3.8 cm)
- Fuel Line Diameter
- 0.375 inches (9.5 mm)
- Fuel Pump Height
- 6.2 inches (15.7 cm)
- Fuel Filter Length
- 4.7 inches (11.9 cm)
Materials
- Tank Material
- High-density polyethylene
- Fuel Lines
- Nitrile rubber with steel reinforcement
- Filler Neck
- Galvanized steel
- Fuel Pump
- Thermoplastic housing with stainless steel internals
Features
- Fuel Delivery
-
- Multi-point fuel injection
- Electric fuel pump
- Pressure regulator
- Returnless fuel system
- Tank Features
-
- Internal baffles for fuel slosh reduction
- Integrated fuel level sensor
- Ventilation system with charcoal canister
- Anti-siphon filler neck design
- Emission Control
-
- Evaporative emission control system
- Oxygen sensors
- Catalytic converter
- PCV system
- Performance
-
- Optimized fuel flow rate
- High-pressure fuel rail
- Cold-start enrichment system
- Altitude compensation
- Safety
-
- Rollover valve
- Impact-resistant tank design
- Leak detection system
- Fuel cut-off inertia switch
Safety Features
- Tank Safety
-
- Impact-resistant construction
- Rollover protection valve
- Flame arrestor in filler neck
- Leak Prevention
-
- Double-walled fuel lines
- Leak detection system
- Automatic fuel shut-off
- Fire Prevention
-
- Fuel cut-off inertia switch
- Thermal protection for fuel lines
- Flame-resistant tank material
Comfort Features
- Refueling
-
- Easy-access filler neck
- Automatic fuel nozzle shut-off
- Fuel level indicator with low fuel warning
- Driving
-
- Smooth fuel delivery
- Altitude compensation
- Cold-start optimization
- Maintenance
-
- Serviceable fuel filter
- Accessible fuel pump
- Diagnostic port for fuel system
Accessories
- Performance
-
- High-flow fuel pump
- Performance fuel injectors
- Fuel pressure regulator
- Maintenance
-
- Fuel system cleaner
- Fuel filter replacement kit
- Fuel pump repair kit
- Diagnostics
-
- Fuel pressure gauge
- OBD-II scanner
- Fuel system diagnostic kit
Maintenance
- Service interval
- Every 30,000 miles or 24 months
- Service Items
-
- Fuel filter replacement
- Fuel system inspection
- Fuel injector cleaning
- Fuel pump performance check
- Evaporative system check
- Maintenance Notes
- Use only recommended fuel types and additives. Regularly inspect for leaks and corrosion.
Warranty
- Fuel Tank Warranty
- Miles: 60,000Years: 5Coverage: Manufacturing defects
- Fuel Pump Warranty
- Miles: 36,000Years: 3Coverage: Electrical and mechanical failure
- Fuel System Warranty
- Miles: 50,000Years: 4Coverage: Leaks and component failure
- Emission System Warranty
- Miles: 80,000Years: 8Coverage: Federal emissions components
Production Details
- Manufacturer
- Subaru Corporation
- Manufacturing Process
-
- Injection molding for fuel tank
- Robotic assembly for fuel lines
- Precision machining for fuel injectors
- Quality Control
- Pressure Testing: 150 psi tank pressure testLeak Testing: Helium leak detectionMaterial Testing: UV and chemical resistance testing
- Sustainability Practices
-
- Recycled materials in tank construction
- Low-VOC fuel system components
- Emission-reducing manufacturing processes
- Production Metrics
- Annual Production: 500,000 unitsDefect Rate: 0.02%Recycling Rate: 95%
Service Information for fuel Service
Maintenance and service requirements specific to the fuel system
- Replace fuel filter
- Inspect fuel lines for leaks
- Check fuel pump pressure
- Clean fuel injectors
- Inspect fuel tank for damage
Use only Subaru-approved fuel system cleaners
- Replace fuel pump if necessary
- Inspect and clean fuel tank
- Check evaporative emission system
- Test fuel pressure regulator
- Inspect fuel filler neck
Special tools required for fuel pump replacement
- Complete fuel system flush
- Replace all fuel lines
- Inspect and replace fuel injectors if needed
- Test fuel system for leaks
- Replace fuel tank if damaged
Major service requires specialized equipment and training
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of fuel is compatible with the 1992-2000 Subaru Impreza?
What type of fuel is compatible with the 1992-2000 Subaru Impreza?
The 1992-2000 Subaru Impreza is designed to run on unleaded gasoline with an octane rating of 87 or higher. Using lower octane fuel may cause engine knocking and reduce performance. For optimal performance, avoid using ethanol blends above 10% (E10) as older models may not be compatible with higher ethanol concentrations.
Q2 What are the maintenance requirements for the fuel system in a 1992-2000 Subaru Impreza?
What are the maintenance requirements for the fuel system in a 1992-2000 Subaru Impreza?
Regular maintenance includes inspecting and replacing the fuel filter every 30,000 miles, checking fuel lines for leaks or wear, and ensuring the fuel injectors are clean. Use fuel system cleaners periodically to prevent buildup. Additionally, monitor the fuel pump for proper operation and replace it if you notice reduced fuel efficiency or engine stalling.
Q3 How do I replace the fuel filter in a 1992-2000 Subaru Impreza?
How do I replace the fuel filter in a 1992-2000 Subaru Impreza?
To replace the fuel filter, first, relieve fuel system pressure by disconnecting the fuel pump fuse and running the engine until it stalls. Locate the fuel filter, typically near the fuel tank. Disconnect the fuel lines and remove the old filter. Install the new filter, ensuring the flow direction matches the arrows on the filter. Reconnect the fuel lines and test for leaks.
Q4 What should I do if my 1992-2000 Subaru Impreza has poor fuel economy?
What should I do if my 1992-2000 Subaru Impreza has poor fuel economy?
Poor fuel economy can result from clogged fuel injectors, a dirty air filter, or a malfunctioning oxygen sensor. Start by inspecting and cleaning the air filter and fuel injectors. Check the oxygen sensor for proper operation and replace it if necessary. Also, ensure the tires are properly inflated and the engine is tuned to factory specifications.
Q5 How can I optimize the fuel performance of my 1992-2000 Subaru Impreza?
How can I optimize the fuel performance of my 1992-2000 Subaru Impreza?
To optimize fuel performance, use high-quality fuel with the recommended octane rating. Regularly replace the air filter, spark plugs, and fuel filter. Keep the engine properly tuned and ensure the tires are inflated to the correct pressure. Avoid excessive idling and aggressive driving, as these habits can reduce fuel efficiency.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
1992-2000 Subaru Impreza Service Manual
Coming SoonComprehensive guide covering maintenance, repairs, and technical specifications for the 1992-2000 Subaru Impreza.
Subaru Technical Service Bulletin: Fuel System Updates
Coming SoonDetails updates and fixes for common fuel system issues in 1992-2000 Subaru Impreza models.
Subaru Impreza Parts and Accessories Catalog
Coming SoonCatalog listing OEM and aftermarket parts for the 1992-2000 Subaru Impreza, including fuel system components.
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Technical Information
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