I HAVE A 1999 NISSAN MAXIMA AND HAVE HAD THE CHECK ENGINE LIGHT ON. CHECKED THE CODE AND CAME BACK WITH CYLINDER 1 MISFIRE. DEALER WANTED $1,000 TO "TRY AND FIX THE PROBLEM". I DON'T HAVE THAT KIND OF MONEY. AS I WAS GETTING ON THE FREEWAY LOST MOST POWER OUT OF THE CAR AND COULDN'T SPEED UP TO AVOID AN ACCIDENT. FORTUNATELY NOBODY WAS HURT HOWEVER IF THE DEALER WOULD HAVE FIXED THEIR FAULTY PART I AM 100% POSITIVE THERE WOULD NOT HAVE BEEN AN ACCIDENT. *JB