1984 Lincoln town car.new plugs new rotor distr cap Wants to flood out Is there an oxygen sensor on this model and could cause it It is a throttle body full injection system a?

A 1984 Lincoln Town Car does *not* have an oxygen sensor. Oxygen sensors weren't commonly used in fuel-injected vehicles until the mid-to-late 1980s, and even then, their implementation varied. Therefore, an oxygen sensor cannot be the cause of your flooding issue.

Since it's a throttle-body fuel injection system, several other things could be causing it to flood:

* Fuel pressure regulator: A faulty fuel pressure regulator could be delivering too much fuel pressure to the injectors, leading to flooding.

* Injectors: The injectors themselves might be sticking open or delivering too much fuel. A simple visual inspection might reveal leaks. More sophisticated testing is usually required for a definitive diagnosis.

* Throttle Position Sensor (TPS): A malfunctioning TPS could be sending incorrect signals to the computer, causing it to inject excessive fuel.

* Mass Air Flow Sensor (MAF) (If Equipped): While less common in 1984, some fuel injection systems used a MAF sensor. A faulty MAF sensor could lead to incorrect fuel delivery. This is less likely given the age of the car.

* Computer/ECU: Although less frequent, problems within the engine control unit (ECU) could be causing the fuel delivery problems. This is harder to diagnose without specialized equipment.

* Vacuum Leaks: A vacuum leak can cause the engine to run rich, leading to flooding. Check all vacuum lines for cracks or disconnections.

* Flooded engine: The car may simply be flooded because the engine was cranked excessively when attempting to start it, even with new parts. Allow plenty of time to dry the cylinders before trying again.

Troubleshooting Steps:

1. Check for obvious leaks: Inspect fuel lines, injectors, and the fuel pressure regulator for any visible fuel leaks.

2. Test fuel pressure: A fuel pressure gauge is needed to measure fuel pressure. This will help determine if the fuel pressure regulator is functioning correctly.

3. Check for vacuum leaks: Carefully inspect all vacuum lines and connections for cracks or loose fittings. Use a vacuum gauge if necessary to test vacuum pressure.

4. Have the car diagnosed: A professional mechanic with experience in older vehicles will have the diagnostic tools and knowledge to pinpoint the exact cause. They can test the fuel injectors, TPS, MAF (if applicable), and the ECU.

Replacing the plugs, rotor, and distributor cap is a good start to basic maintenance, but it won't solve underlying fuel delivery problems. Flooding points to a problem in the fuel system itself. Get it checked by a qualified mechanic.