Sentra Wagon FWD L4-1597cc 1.6L SOHC (E16i) (1988)
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Pulsed Secondary Air Injection: Description and Operation
Fig. 116 Air Injecton Valve (AIV) Operation
The air injection valve system delivers secondary air to the exhaust manifold, utilizing a vacuum caused by exhaust pulsation in the exhaust manifold.
Specific operating conditions are outlined in Fig. 116
