When firing order of one cylinder is wrong and the other isunplugged, it would run and if 2 wrong firing are working at the same time, the engine would most probably stall or run extremely rough.
Refer to the diagram to see if everything is in order.
If the ignition coil is failing, unplugging pulug wires can damage it further. You mentioned replacing almost everything related with ignition, was the ignition coil checked/replaced?
If everything fails, the best thing to do is to start with basics.
Did you replace the spark plug wires?
What were the engine compression readings for each cylinder?
Sunday, January 15th, 2012 AT 7:54 AM