EMISSION CONTROL INFORMATION 9-7
PAIR (AIR SUPPLY) SYSTEM INSPECTION
HOSES
• Inspect the hoses for wear or damage.
• Inspect that the hoses and pipes are securely connected.
PAIR CONTROL VALVE
• Inspect that air flows through the PAIR control valve air inlet
port to the air outlet ports.
• If air does not flow out, replace the PAIR valve with a new one.
• Connect the vacuum pump gauge to the vacuum port of the
control valve as shown in the photograph.
• Apply negative pressure of the specification slowly to the con-
trol valve and inspect the air flow.
• If air does not flow out, the control valve is in normal condition.
• If the control valve does not function within the specification,
replace the control valve with a new one.


 Negative pressure range: More than 66.6 kPa
(491 mmHg)
[[
[[
[ 09917-47010: Vacuum pump gauge
#
Use a hand operated vacuum pump to prevent the con-
trol valve damage.
PAIR REED VAVLE
• Remove the PAIR valve cover.
• Inspect the reed valve for the carbon deposit.
• If the carbon deposit is found in the reed valve, replace the
PAIR control valve with a new one.
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