Engine not running on 2 of the 8 cylinders, the #2 and #6 are dead. All 8 have compression and are testing good on the fuel injectors. I could not find anything else to try so I even replaced the two injectors that tested good. Still dead cylinders????? Spark plug wires, cap and rotor have all been replaced. Anybody else come into this problem or know what to do now????? I am lost.......