First of all, can I assume you have the 1.8L engine with the coil-on-plug system? There are two different versions of the coils depending on the production date of the car. I've never tested one so I can only offer some suggestions.
Are you using a digital meter or an analog one with a pointer?
Normally the primary winding is between the two terminals in the connector and that reading is going to be very low, as in less than 2.0 ohms. Your meter leads will have more resistance than that so you can expect to find around, ... Oh, ... Perhaps 5 ohms. If you're on the 2,000 ohm scale that will read "0" ohms. You have to switch to the 20 ohm or 200 ohm scale to get the most accuracy.
Typically the secondary will read in the area of 12,000 to 15,000 ohms. On the 2,000 ohm scale of a digital meter that would read over range or open, ... The same as if the meter leads were not connected. Some meters go blank for that condition. Some read a single "1" on the left. The secondary connections are normally to the spark plug terminal and a metal insert on the mounting flange. The secondary has no connection to the two small terminals in the connector, but if you're finding something there, that might be some kind of radio noise suppression resistor they put in there. Since all four coils read the same I would have to assume that is normal, but 1.8k to 1.9k is too low to be the secondary coil. That wouldn't produce much spark voltage. Switch the meter to the 20,000 scale, (20k), then measure from the mounting ring to the spark plug terminal. I'll bet you get a much higher reading. You might even have to go to the 200k scale.
Wednesday, May 1st, 2013 AT 3:14 AM