The starter keeps engaging on my 1994 topaz. I
have replaced the starter and sylnoid but it keeps
engaging while the car is running
Unplug the small wire from the solenoid and recheck, if it no longer engages then there is possibly a cross circuit in that small wire any where from the key switch to the solenoid. If it still engages with the small wire unhooked, then either you have a bad solenoid or the cables are connected wrong.