1999 Dodge Intrepid error codes 1684 0351 0301 0432

I. Asked this question once but I left out too many details. Car is running rough. Check engine light flashing then beeps and stops flashing. Changed ignition coil one and spark plug 1 no help. However did not have error code 0351 before putting in new coil. Higher speeds the car runs better at an Idle the car is very rough.A friend said he checked the compression on cylinder one and no compression. However he did not take out all the spark plugs when he did it. He tested coil 2 and it read at 88 PSi. There was oil on plug. Is it time to throw her away. I've loved this car. Almost nine years she has lasted me.