[PeteKz]

Start with basics: Compression, fuel, spark.

Compression: Assume that's good because the car ran fine until 2 weeks ago, and suddenly had this problem. Loss of compression is not an instant problem, nor does it affect all cylinders at the same time.

First test: Spray starter fluid in the intake. See if it fires. If it does, and then dies, that indicates you have spark but loss of fuel to the injectors, or injectors not operating. I know you used a spark tester, so you "should" have spark. If so, then it "should" fire on starting spray.

Fuel. If it doesn't fire on starting fluid, pull a spark plug and see if it's wet. If so, then it may have flooded. Often, just removing the plugs and cranking the engine will clear it (Disconnect the two wires to the coil when cranking without the spark plugs installed).

Spark: Pull a spark plug and connect it to its wire and against the engine or other ground. Have someone crank the engine while you check that it is sparking regularly. if you have consistent spark and it's still not firing, try the starting spray again.

Even if the engine is not firing, you should not smell fuel in the garage. That shouldn't happen in normal starting. That makes me think the engine was flooded. If so, then you will have to figure out why.

Report your results. Then we can narrow down the possible sources of the problem.