PCSV
Vacuum leakage inspection
1.

Install vacuum gauge to PCSV after disconnecting PCSV vacuum hose.

2.

Inspect vacuum leakage by using vacuum gauge.

■ Specification : Vacuum state maintains at operating vacuum gauge.

3.

Does vacuum gauge maintain vacuum value?

▶ Go to "PCSV actuation test" as below.

▶ Replace the PCSV.

PCSV actuation test
4.

Perform "canister purge valve" actuation test after engine warming up.

■ Specification : Vacuum state released by actuation test.

5.

Is vacuum state released by actuation test?

▶ There are possible causes as below. Click on each item for more details. "Fuel supply state", "Fuel pump relay circuit"

▶ Check fuel leakage on the PCSV.

▶ Check that PCSV is opened always.

▶ Replace the PCSV.

PCSV waveform duty controlled
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