There are special tools. Take it to Precision Tune.
ignition switch
You can find the Ford Focus ignition control module beneath the drivers side dashboard. The ignition control module will be above the accelerator pedal.
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Program a new key and ignition to a 2000 ford focus
To remove the ignition barrel on a 1990 Ford Laser, first disconnect the battery to ensure safety. Then, insert the key into the ignition and turn it to the "On" position. Look for a small release pin or screw on the ignition housing that you can access through a hole or slot; press or unscrew it while turning the key to the "Off" position to release the barrel. Finally, pull the ignition barrel out of the steering column.
Remove the ignition retaining ring. Pull the ignition barrel out. Remove the wiring harness from the back of the ignition.
http://www.ehow.com/how_4509339_replace-ignition-coil-pack-ford.html
$49.99
No
It's in the owner's manual.
The barrel is not timed properly to the switch.
Very good.