03 chevy cavalier wont start

have an issue drove the car outta town other day and had car towed home. had codes checked came out engine running too rich. i have changed oil, spark plugs, fuel filter, coil pack, ignition control module, intake air temp sensor. finally got the spark fixed but had standing gas in cylinders. So i got the cylinders all cleaned out from washed cylinder walls and put oil in to fix the compression issue ( it had no compression in all .cylinders). So at this time i have spark, compression, and fuel. when i checked last my exhaust was sucking in air. please help!!!!!

Just a guess.Plugged exhaust.or spark at the wrong time.

is there a way to change the timing on the ignition control moduel, and if so how?

No, the timing is fixed.....it varies according to inputs to the PCM.....

So compression is well in excess of 100 psi?

I assume you changed oil due to the fuel in it.....

You have spark on all 4 cylinders?

You replaced plugs....used OEM and checked gap? Correctly hooked up wires in correct order?

If it doesn't start, then pull a plug and see if the plug is wet.....if it isn't, then try spraying carb cleaner into the intake...

Check for codes?