Trouble code P1166 means: Gauge control module lost communication with Adaptive Front lighting unit(AFS message)
Honda HX has a CVT (continuously variable transmission).
You can change a Honda Civic HX transmission to a manual transmission. It is not an easy job to do.
that is your air bag light
Yes.
Close to the Intake Manifold
starting problems
In good conditions 600
4 quarts
In the gas tank.
Because it is a Honda with a tiny motor.
under the rear seat
3 qts.