Dodge Repair: rough idle

Question
Rough idle loss of gas milage spee 94 dakota 2.5
ds up ok jerks at steady speed.

Answer
Hi Cliff,
Try using the ignition key to get a fault code readout: "on-off-on-off-on and leave on" doing that in 5 seconds or less elapased time. Then watch the Check Engine" light (which remains "0n") to see it begin to flash, pause, flash, etc. Count the number of flashes before each pause, then repeat the process to be sure of an accurate set of flash counts. Then tell me the counts in order of appearance.
Also is this a 4 cyl or a V-6?
Please read the PS (below) and respond to it.
Thanks,
Roland