I have a 1999 honda crv. When I go to start the car, the car will turnover, but won't start up. Can you please tell me what is wrong?

You would have to do some basic checks before i could answer that one im fraid. when did it stop have you have any work done prior to that and if no apparent reason then you would have to check the two main things, fuel (take a spark plug out of your engine, is the end wet/dry, if dry wot colour is it(brown=rich mix, whiteish=running fine,black=running very lean) then while plug out connect back to the wire it came from without screwing it in and hold to the body of the engne with a very insulated pair of pliers while a trusted friend tries to start it, you should see a spark everytime the engine turns over) third conclusive test would be to smell exhaust fumes for trace of petrol) if you can smell petrol in fumes then electrical, same if plugs are wettish with fuel, if plugs dry and spark there then you want to be looking at fuel probs, if no spark and dry plugs then you would be looking at immobiliser probs. sorry i couldnt be more specific.