Can't tell you what is wrong, but maybe help explain the numbers. CO is a measurement of how complete the combustion process is. Ideally every carbon molecule will combine with two oxygen molecules to make CO2. High CO shows that the process has not been complete, and can indicate a lack of oxygen to the process. High HC is unburned gas. Pure and simply, waste. You can expect to find it along with the high CO reading. An extreme condition will produce black smoke. NOX is formed at the other end of the combustion spectrum, when there is such a hot reaction that oxygen combines with nitrogen, the most plentiful component of air. This is usually found in a lean mixture situation.

Your problem can be caused by a number of things, the simplest being a broken or missing thermostat, or performing the test on a cold motor. Others have the experience to help you troubleshoot the rest, but don't be so surprised at your test numbers. They reflect the constancy of our physical world.