Pulsed Secondary Air Injection (Pair) System - Toyota 22R-E Service Manual

EG1–96
To reduce HC and CO emissions, this system draws in air into exhaust ports to accelerate oxidation, using vacuum
generated by the exhaust pulsation in the exhaust manifold.
Condition
Coolant Temp.
Below 30SC
Normal
(86S F)
driving
Above 40SC)
Deceleration
(104SF)
ENGINE
PULSED SECONDARY AIR
INJECTION (PAIR) SYSTEM
Throttle valve
Vehicle speed
position
Below
4 km/h (2 mph)
Idling
Above
4 km/h (2 mph)
– EMISSION CONTROL SYSTEMS
Engine RPM
Below 3,600 rpm
Above 3,600 rpm
Below 1,000 rpm
Above 1,000 rpm
Below 1,000 rpm
Above 1,000 rpm
PAIR
vsv
OFF
OFF
OFF
OFF
ON
ON