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How do you major tune up 1992 Toyota Paseo?

Here are steps on how to major tune up a 1992 Toyota Paseo:

1. Preparations:

- Disconnect the negative battery terminal to avoid electrical hazards.

- Gather necessary tools and parts, including spark plugs, distributor cap, rotor, spark plug wires, air filter, fuel filter, PCV valve, and any necessary gaskets or seals.

- Set aside enough space to work comfortably and ensure good lighting.

2. Ignition System Tune-up:

- Remove the distributor cap and inspect for any cracks, damage, or corrosion.

- Replace the distributor cap and rotor if needed.

- Replace the spark plug wires, ensuring they are connected correctly according to the proper firing order (1-3-4-2).

- Remove and check the spark plugs for wear, gap, and condition. Replace them with new ones if required.

3. Fuel System Tune-up:

- Locate and remove the fuel filter.

- Install the new fuel filter in the proper direction as indicated by the arrows on the filter.

- Start the engine and let it run for a few minutes to allow the fuel system to pressurize.

4. Air Intake System Tune-up:

- Locate the air filter housing and remove its cover.

- Take out the old air filter and inspect it for any dirt or debris.

- Replace the air filter with a new one if needed.

- Reinstall the air filter housing cover.

5. PCV Valve Replacement:

- Locate the Positive Crankcase Ventilation (PCV) valve.

- Unscrew the old PCV valve and remove it from the engine.

- Install the new PCV valve in place, ensuring it's securely tightened.

6. Fluids Check:

- Check the engine oil level and top it off if required.

- Inspect the oil for its clarity. If it's dark or contaminated, consider changing the oil.

- Check the transmission fluid level if the Paseo has an automatic transmission.

7. Battery and Terminal Maintenance:

- Clean the battery terminals using a wire brush to remove corrosion.

- Reconnect the negative battery terminal.

- Start the engine and ensure it's running smoothly.

It's important to note that your Paseo's repair manual may provide additional model-specific instructions, so refer to it before performing these steps. If you're unsure or uncomfortable performing these tasks, it's best to seek the assistance of a professional mechanic.