If we’ve (the techs on this site) said it once we’ve said it a thousand times, TODAYS COILS CAN NOT BE TESTED USING A MULTI METER, You need special equipment to test them, due to Hall Effect triggers inside the coil. Easiest way for the DIY guts to test a coil is to disconnect the kill wire from a properly mounted coil and then check for spark. No spark, bad coil. Spark, you’ve got other problems.