[cbaber]

The D15B7 doesn't have lean burn, that was reserved for the D15Z1 in the 92-95 generation. Besides, lean burn engages while driving, it doesn't do it while idling (at least in my HX).

1. Have you tried replacing the O2 sensor?
2. What PSI are you running in your tires?
3. Do you have extra stuff in your car?
4. Have you done a full tune up recently? This includes plugs, wires, cap/rotor, fuel filter, full fluid change, etc.
5. Have you checked your ignition timing?

If you rebuilt the motor and still only get 160 PSI compression, the motor wasn't rebuilt well.

If you are idling for 30 seconds, that is an issue. Turn off the car when you know you are going to idle for more than 10 seconds. Start a fuel log. It will help us see your actual results, instead of just listing numbers. We want to see tank by tank results.