Technician A says that the secondary air injection (SAI) system ...

[armygirl]

Technician A says that the secondary air injection (SAI) system forces air at low pressure into the exhaust to reduce CO and HC exhaust emissions. Technician B says that a check valve is used between the AIR pump and the exhaust manifold to prevent exhaust gases from damaging the AIR pump and valves. Who is right?
 
  A) Technician A only B) Technician B only C) Both A and B D) Neither A nor B

Question 2

The OBD-II system checks the EGR valve for operation by _______.
 
  A) Opening and closing the EGR valve B) Flashing the MIL
  C) Cycling the DTC system D) Drawing a vacuum on the EGR valve

[s.meritte]

Answer to Question 1

C

Answer to Question 2

A

[armygirl]

Excellent

[steff9894]

Wow, this really help