Acura Integra 1985-1989 Emissions & Sensors Specifications
Explore the detailed technical specifications for the emissions sensors system in the 1985-1989 Acura Integra, including sensor types, placement, and functionality within the vehicle's emissions control system.
1985-1989 Acura Integra Emissions Sensors Overview Specifications
This document provides a comprehensive guide to the emissions sensors specifications for the 1985-1989 Acura Integra. It includes detailed technical information, installation guidelines, and troubleshooting tips. Use this guide to understand the emissions control system, identify components, and perform maintenance or repairs. Refer to the sections below for specific details and use the quick reference section for key specifications.
How to Use
To find specific information, use the search functionality by entering keywords such as 'oxygen sensor', 'air-fuel ratio', or 'troubleshooting'. Narrow your search by model year or sensor type for precise results.
Navigate through the document by selecting sections from the table of contents. Each section provides detailed descriptions, technical specifications, and maintenance tips. Use the quick reference section for at-a-glance key specifications.
Key Specifications
Oxygen Sensor Type
Single-wire, unheated
Air-Fuel Ratio Sensor Voltage
0.5V to 4.5V
Coolant Temperature Sensor Range
-40°F to 250°F
Mass Airflow Sensor Voltage
0.5V to 5.0V
Recommended Sensor Replacement Interval
Every 50,000 to 80,000 miles
Available Specifications
Emissions Sensors Overview
This section provides an introduction to the emissions sensors used in the 1985-1989 Acura Integra. It covers the types of sensors, their functions, and their locations within the vehicle. Understand the role of each sensor in maintaining emissions control and fuel efficiency.
Emissions Sensors Overview
This section provides an introduction to the emissions sensors used in the 1985-1989 Acura Integra. It covers the types of sensors, their functions, and their locations within the vehicle. Understand the role of each sensor in maintaining emissions control and fuel efficiency.
Oxygen Sensor
- Located in the exhaust system downstream of the catalytic converter
- Monitors oxygen levels in the exhaust gases
- Provides feedback to the Engine Control Unit (ECU) to adjust fuel mixture
- Typical replacement interval: 50,000 to 80,000 miles
- Operating voltage range: 0.1V to 0.9V
Air-Fuel Ratio Sensor
- Installed in the intake manifold or near the throttle body
- Measures the air-fuel mixture ratio
- Sends signals to the ECU to optimize combustion efficiency
- Common failure symptoms: poor fuel economy, rough idle
- Replacement requires resetting the ECU
Sensor Types and Functions
This section details the specific types of emissions sensors used in the 1985-1989 Acura Integra, including their technical specifications and operational parameters. Understand the differences between sensor types and their roles in the emissions control system.
Sensor Types and Functions
This section details the specific types of emissions sensors used in the 1985-1989 Acura Integra, including their technical specifications and operational parameters. Understand the differences between sensor types and their roles in the emissions control system.
Coolant Temperature Sensor
- Mounted on the engine cylinder head or near the thermostat housing
- Monitors engine coolant temperature
- Provides data to the ECU for fuel injection timing and idle control
- Typical operating temperature range: -40°F to 250°F
- Failure symptoms: erratic idle, poor cold start performance
Mass Airflow Sensor
- Located between the air filter and the throttle body
- Measures the amount of air entering the engine
- Helps the ECU calculate fuel injection quantities
- Common issues: contamination from dirt or oil
- Cleaning interval: every 15,000 to 30,000 miles
Installation and Maintenance
This section provides guidelines for the proper installation and maintenance of emissions sensors on the 1985-1989 Acura Integra. Follow these instructions to ensure optimal performance and longevity of the sensors.
Installation and Maintenance
This section provides guidelines for the proper installation and maintenance of emissions sensors on the 1985-1989 Acura Integra. Follow these instructions to ensure optimal performance and longevity of the sensors.
Sensor Installation Tips
- Always disconnect the battery before starting work
- Use torque specifications for sensor mounting bolts
- Ensure all electrical connections are clean and secure
- Avoid touching sensor elements to prevent contamination
- Test sensor operation after installation
Maintenance Schedule
- Inspect sensors every 12,000 miles
- Clean or replace sensors as needed
- Check wiring and connectors for damage or corrosion
- Test sensor voltage and resistance using a multimeter
- Refer to the repair manual for specific procedures
Troubleshooting Common Issues
This section covers common issues related to emissions sensors in the 1985-1989 Acura Integra. Learn how to diagnose and repair problems using the provided troubleshooting guides and technical specifications.
Troubleshooting Common Issues
This section covers common issues related to emissions sensors in the 1985-1989 Acura Integra. Learn how to diagnose and repair problems using the provided troubleshooting guides and technical specifications.
Faulty Oxygen Sensor Symptoms
- Check Engine Light illumination
- Decreased fuel efficiency
- Rough engine idle or stalling
- Failed emissions tests
- Scan for trouble codes using an OBD-I scanner
Air-Fuel Ratio Sensor Issues
- Erratic engine performance
- Difficulty starting the engine
- Increased emissions
- Unstable idle speed
- Check for vacuum leaks or faulty wiring
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Component Specifications
Overview
- Type
- Oxygen Sensor
- Configuration
- Single-wire
- Platform
- Acura Integra (1st Generation)
- Material
- Ceramic with Stainless Steel Housing
- Location
- Exhaust System
- Function
- Monitors Oxygen Levels in Exhaust
Dimensions
- Sensor Length
- 3.5 inches (8.89 cm)
- Sensor Diameter
- 0.75 inches (1.91 cm)
- Thread Size
- 3/8-18 NPT
- Electrical Connector Size
- 0.187-inch terminal
- Operating Temperature Range
- -40°F to 1500°F (-40°C to 815°C)
Materials
- Sensor Tip
- Ceramic
- Housing
- Stainless Steel
- internal Element
- Platinum
- Electrical Connector
- Brass
- Sealing Gasket
- Silicon
Features
- Sensor Types
-
- Oxygen Sensor
- Exhaust Gas Sensor
- Monitoring Capabilities
-
- Rich/Lean Fuel Mixture
- Exhaust Gas Temperature
- Catalytic Converter Efficiency
- Connectivity
-
- Single-Wire Connection
- Compatible with Early ECM Systems
- Accuracy
-
- Quick Response Time
- High Precision Measurements
- Durability
-
- Resistant to Corrosion
- High-Temperature Endurance
Safety Features
- Overheat Protection
- Built-in Thermal Shield
- Electrical Protection
-
- Surge Protection
- Short-Circuit Prevention
- Self Diagnostic
- Internal Fault Detection
Comfort Features
- Emissions Reduction
-
- Low Emissions Output
- Reduced Pollutants
- Fuel Efficiency
- Optimized Fuel-Air Mixture
- Smooth Operation
- Consistent Engine Performance
Accessories
- Mounting Hardware
-
- Sensor Bracket
- Mounting Bolts
- Washers
- Electrical Components
-
- Wiring Harness
- Connector Adapter
- Heat Shield
- Additional Accessories
-
- Gasket Kit
- Anti-Seize Compound
Maintenance
- Service interval
- Every 30,000 to 50,000 miles
- Maintenance Items
-
- Inspect sensor for contamination
- Clean sensor tip if necessary
- Replace sensor if faulty
- Check wiring and connections
- Notes
- Avoid using silicone-based cleaners; may damage sensor
Warranty
- Basic Warranty
- Coverage: Parts and LaborMiles: 36,000 milesYears: 3 years
- Powertrain Warranty
- Coverage: Emissions-Related ComponentsMiles: 50,000 milesYears: 5 years
- Emissions Warranty
- Coverage: Catalytic Converter and SensorsMiles: 80,000 milesYears: 8 years
- Extended Warranty
- Coverage: Extended Service Plans AvailableMiles: Up to 100,000 milesYears: Up to 7 years
Production Details
- Manufacturer
- Honda Motor Co., Ltd.
- Manufacturing Process
-
- Precision Machining
- Ceramic Element Fabrication
- Electrical Component Assembly
- Final Calibration and Testing
- Quality Control
- inspection: Visual and Functional TestingCertifications: ISO 9001:2015Standards: Meets or Exceeds OBD-I Regulations
- Sustainability Practices
- Recyclable Materials Used Where Possible
- Production Metrics
- Annual Production: Thousands of UnitsFailure Rate: <1%Warranty Claims: Low
Service Information for Emissions Sensors Service
Maintenance and Service Requirements for Emissions Sensors
- Inspect emissions sensor for contamination
- Check sensor wiring and connections
- Test sensor performance if issues arise
- Clean sensor tip if necessary
Recommended with regular maintenance service
- Inspect sensor for signs of wear
- Check electrical connector integrity
- Perform emissions system test
- Consider sensor cleaning or replacement
Use specialized tools for accurate testing
- Replace emissions sensor if necessary
- Inspect and clean or replace wiring harness
- Check catalytic converter efficiency
- Perform complete emissions system overhaul
Critical for maintaining emissions compliance
Frequently Asked Questions
Find answers to common questions about torque specifications
Q1 What type of emissions sensors are used in the 1985-1989 Acura Integra?
What type of emissions sensors are used in the 1985-1989 Acura Integra?
The 1985-1989 Acura Integra utilizes Oxygen (O2) sensors and Catalytic Converter sensors. The O2 sensor is a zirconia-based sensor operating at a voltage range of 0.1 to 1.0 volts, and the catalytic converter sensor monitors exhaust gas temperature and efficiency.
Q2 How often should the emissions sensors be checked or replaced?
How often should the emissions sensors be checked or replaced?
Emissions sensors should be inspected every 30,000 miles or as part of routine maintenance. Replacement is recommended if the sensor fails diagnostic tests or shows erratic voltage readings outside the normal range of 0.1 to 1.0 volts.
Q3 What are the common symptoms of a failing emissions sensor in the Acura Integra?
What are the common symptoms of a failing emissions sensor in the Acura Integra?
Common symptoms include erratic engine performance, increased fuel consumption, and the emission of excessive pollutants. Diagnostic codes such as P0130 (O2 sensor circuit malfunction) may also appear.
Q4 Can aftermarket emissions sensors be used in the 1985-1989 Acura Integra?
Can aftermarket emissions sensors be used in the 1985-1989 Acura Integra?
While aftermarket sensors can be used, it is recommended to use genuine Acura parts to ensure compatibility and accuracy. Non-genuine parts may lead to incorrect readings and potential warranty voidance.
Q5 What is the operating temperature range for the emissions sensors?
What is the operating temperature range for the emissions sensors?
The O2 sensor operates optimally between 600°F and 900°F. The catalytic converter sensor monitors temperatures ranging from 400°F to 1200°F, ensuring efficient pollutant reduction.
Factory Service Resources
Access official service manuals, technical documents, and repair guides. These resources provide detailed procedures, specifications, and diagrams directly from the manufacturer.
Acura Integra Emissions Sensor Maintenance Guide
Coming SoonA detailed guide on maintaining and troubleshooting emissions sensors for the 1985-1989 Acura Integra.
O2 Sensor Diagnostic Procedures
Coming SoonStep-by-step diagnostic procedures for checking and replacing O2 sensors in the Acura Integra.
Catalytic Converter Efficiency Monitoring
Coming SoonInformation on monitoring and maintaining catalytic converter efficiency in the 1985-1989 Acura Integra.
Genuine Acura Parts Catalog
Coming SoonCatalog of genuine Acura parts for emissions sensors, ensuring compatibility and performance.
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