Secondary Air Injection
Name one purpose of the SAI system.
What is burn unburned fuel in the exhaust?
What is pre-heat oxygen sensors?
What is help OBD into closed loop faster?
Acceptable heat output in temperature would be in what range?
What is 120F-150F?
This component brings chilled coolant into the passenger compartment.
What is the evaporator?
Evaporative systems are designed to store this material.
What is fuel vapor?
What is the low side?
The modern way to operate a SAI pump is with this method.
What is electrically?
This device brings warm coolant into the passenger compartment.
What is a heater core?
This component dumps hot air from the refrigerant at the front of the vehicle.
What is the condensor?
This valve bleeds off excessive air pressure in the fuel tank.
What is the vent valve?
134A refrigerant uses this type of oil.
Monitoring this sensor can determine if air from the SAI pump is getting into the exhaust system.
What is pre-converter oxygen sensor?
This filter is used on the blower motor intake side.
What is a cabin air filter?
AC compressors cannot pull in refrigerant in this state.
What is liquid?
The component is used to pull a vacuum in the evaporative system to test for leaks.
What is the purge valve?
Refrigerant is usually charged through this side of the AC system.
What is the low side?
This valve prevents hot exhaust gases from burning rubber and plastic parts.
What is the check valve?
Heating systems bypass this engine component for faster warm ups inside the cabin.
What is the thermostat?
A CCOT AC system uses this component as the restriction.
What is a fixed orifice tube?
Name one of the methods for leak testing the evaporative system.
What is smoke testing?
What is pressure (nitrogen) testing?
The process of removing existing refrigerant from the AC system.
What is recovery?
Daily Double!!!
This valve is used to redirect fresh air away from the exhaust system when it is not needed.
This method of heat transfer is used in vehicle HVAC systems.
What is convection?
A TXV AC system will not use an accumulator. Instead it used this component that does the same job.
What is the receiver drier?
The most common type of failure in an evaporative system.
What is a loose/missing fuel cap?
This change in pressure happens at the TXV.
What is high pressure to low pressure?