Comprehensive Guide on Fixing the 1986 Acura Integra Fuel Injector Leakage

One of the less common but still important problems you may encounter with your 1986 Acura Integra is fuel injector leakage. This issue can significantly compromise your fuel economy and overall vehicle performance. Here's an in-depth guide to diagnosing and fixing this problem.

Diagnosing Fuel Injector Leakage

Before diving into the repairs, you first need to confirm that the fuel injector is indeed leaking. If you are experiencing poor fuel economy, difficulty starting the car, or an unpleasant fuel odor, these might be signs of a fuel injector leakage. Perform the following steps:

1. Inspect the fuel injectors under proper lighting. You're looking for any pooling or dripping fuel around the injectors.
2. If nothing definitive is noticeable, run the vehicle for some time and monitor the injectors for signs of leakage while the fuel pump is engaged.
3. Still not sure? Professional-grade fuel injector testers are available in specialty stores that can determine if leakage is happening.

The Tools You Need

You're going to need these tools:

• A wrench set
• Flathead and Phillips screwdrivers
• A fuel line disconnect tool
• Replacement O-rings
• New fuel injector (if replacing)
• Fuel Injector tester (not necessary but can be helpful)

The Repair Process

1. Unhook the Battery

Always unhook your battery before performing any major repairs. This will prevent accidental sparks or shock when working on electrical components.

2. Relieve the Fuel System Pressure

Before you start working on the injectors, relieve pressure in the fuel system to prevent a hazardous fuel spray. This typically involves starting the car, then pulling the fuel pump fuse while the engine is running.

3. Remove the Fuel Injectors

Disconnect the fuel supply line from the rail using a fuel line disconnect tool. Then, unbolt the rail, disconnect the wiring connectors on the injectors, and pull out the injectors straight out of the rail.

4. Inspect and Replace the Injector O-rings

Inspect and feel the O-rings on your fuel injectors. If they feel capitalised, worn out, or damaged, they are likely causing the leakage. Replace all O-rings as a preventive measure.

5. Reassemble the Fuel Injectors and Rail

Install the fuel injectors back into the rail and secure the rail with the bolts. Connect the supply line and electrical connectors. Ensure everything is tightly secured and seated properly to prevent future leaks.

6. Test Run the Vehicle

Run the car for a few minutes and monitor the injectors thoroughly for any signs of leakage.

Things to Keep in Mind

Some things to take care of while performing this repair:

• Be cautious around fuel components. Work in a well-ventilated area away from any open flames.
• Never yank the fuel injector from the rail; pull them out straight to avoid any damage.
• Always change the O-rings when removing the Fuel Injector. It's cheap insurance against further leaks.

We hope this guide helps you effectively remedy the fuel injector leakage in your 1986 Acura Integra. The process can be laborious, but with patience and the right tools, your Acura should be back to perfect form.