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1993 850 automatic 225k miles - cranks well but no start -has spark and gas 850 1993

Spark Plug is sparking and is wet with gas. Have Jumped
from other car to insure strong cranking. Have recently replaced
fuel filter, fuel pump and fuel pump relay
. Car ran rough for a few minutes, stalled
and now will not start. Could be spark is to weak? Coil is original.
Since both gas and spark are present what do I do? Could this
be a collapsed Catalytic converter? Could it be bad O2 sensor.
Had a string of Ignition , (i.e. Pin#1 in Block A) 2-4-1 error
codes(Bad EGR flow), but I assume this can not explain non-start.
There are no Fuel System (i.e. Pin#2 in Block A) error codes recorded.
Many thanks, Mark






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