Patients can be assured that an ABPN board-certified psychiatrist has specialized skills and knowledge to diagnose and treat problems ranging from emergencies to the long-term medical management of psychiatric disorders. The conditions psychiatrists treat include disorders such as: Depressive disorders.
Answer   A backfire is caused by unburned fuel and air getting into a hot exhaust system where it ignites. Plugs have nothing to do with it. Some cars, when they ar â¦ e turned off, pass enough fuel and air, that isn't being burned in the now-turned-off cylinders to cause a backfire.
Backfiring in internal combustion engines occurs outside of the combustion chamber, and is typically the result of an improper air to fuel ratio. An overly lean air-fuel mixture (i.e. an overabundance of air) can lead to a failure to ignite in the combustion chamber, also called a misfire.