Diagnostic Procedure
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?

▶ Go to "Fuel supply state inspection" procedure.

▶ Go to "Fuel pump circuit inspection" procedure.

▶ Inspect fuel leakage from PCSV and open stuck of PCSV

▶ Replace the PCSV as necessary after checking PCSV component.

note
PCSV waveform duty controlled
Яндекс.Метрика