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2003 cavalier not starting you have fuel pressure and the injectors pulse checked for spark also wont start with fluid there was oil on inside of airbox any ideas?

Here are a few things to check:

1. Check the ignition coil. The ignition coil is responsible for providing the spark that ignites the fuel in the cylinders. If the ignition coil is faulty, it will not be able to provide a spark, and the engine will not start.

2. Check the spark plugs. The spark plugs are responsible for delivering the spark from the ignition coil to the cylinders. If the spark plugs are worn out or damaged, they will not be able to deliver a spark, and the engine will not start.

3. Check the distributor cap and rotor. The distributor cap and rotor are responsible for distributing the spark from the ignition coil to the spark plugs. If the distributor cap or rotor is cracked or damaged, it will not be able to distribute the spark properly, and the engine will not start.

4. Check the fuel filter. The fuel filter is responsible for removing impurities from the fuel before it enters the engine. If the fuel filter is clogged, it will not be able to allow enough fuel to reach the engine, and the engine will not start.

5. Check the air filter. The air filter is responsible for removing impurities from the air before it enters the engine. If the air filter is clogged, it will not be able to allow enough air to reach the engine, and the engine will not start.

If you have checked all of these things and the engine still does not start, you may need to have a mechanic diagnose the problem.