Check the PCSV
- Ignition "OFF".
- Disconnect PCSV and Vacuum Hose.
- Apply vacuum on PCSV with Hand Vacuum Gauge.
- Is the PCSV keeping the Vacuum?
YES
- Go to "Check Injector " as below.
NO
- Replace the PCSV with an usable one and check for proper operation. If the problem is corrected, replace the PCSV and then go to "Verification of Vehicle Repair ".