2002 Mitsubishi Eclipse Spyder

MY CHECK ENGINE LIGHT CAME ON AND MY CAR FELT WOBBLY. I TOOK IT TO MY MECHANIC WHO SAID THERE WAS A MISFIRE WHICH COULD MEAN I NEEDED NEW SPARK PLUGS BUT SHOULDN'T UNTIL 60,000; I ONLY HAVE 44,000 MILES ON MY CAR. HE REPLACED ALL SIX SPARK PLUGS BUT THAT DID NOT FIX THE PROBLEM SO HE REPLACED THE WIRES, CAP AND ROTOR, THE CHECK ENGINE LIGHT WAS STILL ON SO HE DID A COMPRESSION TEST AND SAID MY 6TH PISTON WAS NOT HOLDING COMPRESSION AND THIS WAS A BIGGER PROBLEM SO I SHOULD TAKE IT TO THE DEALERSHIP. I TOOK IT TO MILLER MITSUBISHI AND THEY SAID THERE WAS A MISFIRE AND MY 6TH PISTON WAS NOT HOLDING COMPRESSION. MY WARRANTY EXPIRED. THEY SAID THERE ARE DENTS ON THE 6TH PISTON FROM SOMETHING BEING DROPPED INTO THE ENGINE THEREFORE THAT IS WHY IT WON'T HOLD COMPRESSION AND I NEED A NEW ENGINE BLOCK. THE ONLY WORK I EVER HAD DONE PRIOR TO THIS WAS OIL CHANGES EVERY 3,000 MILES. THEY WANT ME TO PAY FOR A NEW ENGINE AT 44,000 MILES. MY CAR IS STILL AT THE DEALERSHIP.

MY "SERVICE ENGINE SOON" LIGHT CAME ON, THERE WAS A "MISS" IN THE ENGINE AND WHEN TESTED BY THE DEALERSHIP DETERMINED THAT I HAD A "BAD" SPARK PLUG SO DID A REPLACEMENT. I PICKED IT UP DROVE ABOUT 5 MILES AND THE "SERVICE ENGINE SOON" LIGHT CAME ON AGAIN. I IMMEDIATELY RETURNED IT TO THE DEALERSHIP. THEY DETERMINED THE SAME PROBLEM AND REPLACED THE SPARK PLUG AGAIN. ALSO INDICATING THAT THE COMPUTER ROM HAD TO BE UPDATED. WHEN THE "SERVICE ENGINE SOON" LIGHT CAME ON YET AGAIN I CALLED THE DEALERSHIP AND WAS TOLD THAT I HAD TO WAIT UNTIL APRIL WHEN THE "UPDATE" IS AVAILABLE. IN THE MEAN TIME, THE "SERVICE ENGINE SOON" LIGHT IS ON, THERE IS A TERRIBLE MISS & MY GAS MILEAGE IS CRUMMY. I AM VERY CONCERNED ABOUT FURTHER DAMAGE TO MY ENGINE AND AM GETTING NOWHERE WITH EITHER THE DEALERSHIP OR MITSUBISHI CORPORATION.