Result

AIR System Operations

Pulsation Conditions (ECM Calculation)

Air-Fuel Ratio (Reference)

AP: ON, ASV: OPEN

11.25 kPa or more

18 or more

AP: OFF, ASV: CLOSE

Less than 11.25 kPa

Approximately 14.5 (around stoichiometric air-fuel ratio)

REFERENCE:

If the air pump operation is confirmed as normal (See page ES-368), the air-fuel ratio detected in front of three-way catalytic converter changes in response to the secondary air pumped into the exhaust port when the air pump operates.

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