Evaporative Emission Control Canister: Testing and Inspection

FA20 EMISSION CONTROL: CANISTER: INSPECTION; 2013 MY FR-S [03/2012 -]

1. INSPECT CHARCOAL CANISTER ASSEMBLY

NOTICE:
When applying vacuum, the needle may waver but, as long as the needle returns to its initial position immediately, it is not a malfunction.

(a) Visually check the charcoal canister assembly for cracks or damage.

If cracks or damage is found, replace the charcoal canister assembly.

(b) Check the air flow.

(1) Using a vacuum pump, check the air flow according to the procedures below.









OK:





If the result is not as specified, replace the charcoal canister assembly.

2. INSPECT CANISTER PUMP MODULE

(a) Measure the resistance according to the value in the table below.









Standard Resistance:





(b) Check the operation of the check valve.

(1) Install a clean hose to the purge valve.









(2) Check that air flows from port A to port B.

(3) Connect the positive (+) lead of the battery to terminal 5 and the negative (-) lead to terminal 1.









(4) Check that air does not flow from port A to port B.

(5) Connect the positive (+) lead of the battery to terminal 3 and the negative (-) lead to terminal 4.









(6) Check that the vacuum pump operates.

NOTICE:
Do not operate vacuum pump for 5 minutes or more.

(7) Connect the positive (+) lead of the battery to terminal 6 and the negative (-) lead to terminal 8.









(8) Measure the voltage according to the value in the table below.

Standard Voltage:





(9) Connect the positive (+) lead of the battery to terminal 6 and the negative (-) lead to terminal 8.









(10) Connect the positive (+) lead of the battery to terminal 3 and the negative (-) lead to terminal 4. Check that the voltage drops slightly from 3.5 volts.