Several weeks ago on our 1999 2.0L, I was constantly getting error codes that cylinder 1 and 4 were misfiring. After figuring out that the coil pack could be the problem, I replaced it. The car ran absolutely fine after that and always started without any problems. We went out of town Friday, came back and proceeded to start the car on Wednesday and problems after problems. Wouldn't stay running, when it did start after 4-5 attempts, couldn't get above 800 rpm even with the gas floored. I kept the gas pedal down until it finally caught up with itself. Released the pedal, back to rough idle, no acceleration at all and back to dying 2 seconds after it "starts". Battery cranks fine, no check engine lights, just will not run properly. What could happen after sitting for 5 days? At "idle", charging voltage jumps between 13-14 volts due to erratic idle but at about 1000-1200 the voltage holds steady at 14.14 volts.