Two technicians are discussing exhaust check valves used in SAI ...

[natalie2426]

Two technicians are discussing exhaust check valves used in SAI systems. Technician A says that they are used to prevent the output from the SAI pump from entering the intake manifold. Technician B says the check valves are used to keep the exhaust from entering the AIR pump. Which technician is correct?
◦ Technician A only
◦ Technician B only
◦ Both technicians A and B
◦ Neither technician A nor B

[paavo]

Technician B only

[natalie2426]

Great answer, keep it coming

[cdmart10]

Thanks for the timely response, appreciate it