Flow Fault. Permanent Fault
Flow fault. Permanent fault
EFI-614 EVAP canister shut-off valve, flow fault
Identification
First read Identifying cars constructed according to ORVR Application and ID.
Is the car constructed according to ORVR?
Yes - Safety
No - Flow fault. Permanent fault
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Flow fault. Permanent fault
EFI-614 EVAP canister shut-off valve, flow fault
Checking fuel tank pressure sensor
- Start the engine and let it idle.
- Open the fuel tank filler cap.
- Select Volvo Scan Tool (ST) to read off the value of the fuel tank pressure.
The fuel tank pressure must be between +500 Pa and -500 Pa
Yes -
No -
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Replacing component
- Try a new fuel tank pressure sensor according to Tank pressure sensor, replacement Removal and Replacement.
Continue -
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Checking vacuum downstream of the canister purge (CP) valve
- Disconnect the hose between the canister purge (CP) valve and EVAP canister from the canister purge (CP) valve.
- Engine idling.
- Select Volvo Scan Tool (ST) to activate the canister purge (CP) valve.
Check that there is no vacuum in the canister purge (CP) valve when the valve is not activated.
Is there a vacuum?
Yes -
No -
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Replacing component
- Try a new canister purge (CP) valve.
Continue -
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Checking hose
- Ignition off.
- Remove the left fender liner.
Check that the hose between the EVAP canister and EVAP canister shut-off valve is not pinched or folded. If there are no visible faults in the hose, carefully disconnect it from the EVAP canister and EVAP canister shut-off valve. Check that it is not blocked.
Is the hose OK?
OK -
Not OK -
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Remedy or replace component
- Remedy or try a new hose.
Continue -
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Checking EVAP canister
- Ignition off.
- Remove the EVAP canister and let it hang by its hoses.
- Carefully disconnect the hose to the EVAP canister shut-off valve. Disconnect the end of the hose from the EVAP canister.
Check the EVAP canister shut-off valve connector in the EVAP canister.
The connector should not be blocked.
OK -
Not OK -
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Replacing component
- Try a new EVAP canister shut-off valve.
Continue -
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Remedy or replace component
Remedy or try a new EVAP canister.
Continue -
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Verification
Verification
Hint: After carrying out the repair, check that the fault has been remedied as follows:
- Ignition off.
- Reinstall all hoses/components.
- Ignition on.
- Select Volvo Scan Tool (ST) to erase diagnostic trouble codes (DTCs).
Continue - Verification, continued
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Verification, continued
- Disconnect the Volvo Scan Tool (ST) from the VIDA station and use it in stand-alone mode.
- Run the engine to operating temperature (above 70°C).
- Air conditioning (A/C) off.
- Gear selector in P or N
- Engine idling
- Go into the Diagnostic Test Mode (DTM) menu. Activate leak diagnostic.
- Wait until the diagnostic is complete. This can take up to 2 minutes.
Note! If the texts START CONDITIONS NOT MET or DIAGNOSTIC INTERRUPTED are displayed the diagnostic cannot be carried out. This can have several causes: for example high fuel evaporation, high canister charge, high tank pressure, fuel trim not active or a diagnostic trouble code (DTC) stored after the diagnostic has been activated. Check that no diagnostic trouble codes (DTCs) are stored, restart the car and try to activate the diagnostic again. Sometimes several attempts will have to be made before the diagnostic is carried out.
Continue - Verification, continued
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Verification, continued
- Volvo Scan Tool (ST) connect to VIDA station.
- Engine idling
- Select Volvo Scan Tool (ST) to read off diagnostic trouble codes (DTCs).
Does the diagnostic trouble code (DTC) recur?
Yes - VERIFICATION FAILED
No - VERIFIED
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VERIFIED - FAULT FOUND
VERIFICATION FAILED -
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Fault-tracing information
Information
Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
Do you want to exit fault-tracing?
Yes - Exit fault-tracing
No - Attempt New Test
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Attempt New Test -
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Safety
First read Safety regulations for handling fuel Safety Regulations For Handling Fuel.
Continue - Checking fuel tank pressure sensor
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Checking fuel tank pressure sensor
- Start the engine and let it idle.
- Open the fuel tank filler cap.
- Go into the scrolling values list and read off the value of fuel tank pressure.
Fuel tank pressure must be higher than -1000 Pa.
Is fuel tank pressure higher than -1000 Pa?
Yes - Checking vacuum downstream of the canister purge (CP) valve
No - Replacing component
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Checking vacuum downstream of the canister purge (CP) valve
- Disconnect the hose between the canister purge (CP) valve and EVAP canister from the canister purge (CP) valve.
- Engine idling.
- Go into the scrolling values list to determine whether the EVAP valve is activated or not.
Check that there is no vacuum in the canister purge (CP) valve when the valve is not activated.
Is there a vacuum in the canister purge (CP) valve?
Yes - Replacing component
No - Checking hose
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Replacing component
Try a new fuel tank pressure sensor according to Replacing fuel tank pressure sensor Removal and Replacement.
Continue - Verification
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Replacing component
Try a new canister purge (CP) valve.
Continue - Verification
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Checking hose
- Ignition off.
Check that the hose between the EVAP canister and EVAP canister shut-off valve are not pinched or folded. If there are no visible faults in the hose, carefully disconnect it from the EVAP canister and EVAP canister shut-off valve. Check that it is not blocked.
Is the hose OK?
Yes - Checking filter
No - Remedy or replace component
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Checking filter
- Ignition off.
Check that the hose between the EVAP canister shut-off valve and its filter is not pinched or kinked. If there are no visible faults in the hose, carefully disconnect it from the EVAP canister shut-off valve. Check that the hose or filter are not blocked.
Were any faults detected?
Yes - Verification
No - Checking EVAP canister
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Remedy or replace component
Remedy or try a new hose.
Continue - Verification
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Checking EVAP canister
- Ignition off.
- Carefully disconnect hose to EVAP canister shut-off valve. Disconnect end of hose from EVAP canister.
Check EVAP canister shut-off valve connector in EVAP canister.
The connector should not be blocked.
Is the connector blocked?
Yes - Remedy or replace component
No - Replacing component
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Remedy or replace component
Remedy or try a new EVAP canister according to Replacing the EVAP canister Replacing the EVAP Canister.
Continue - Verification
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Replacing component
Try a new EVAP canister shut-off valve according to Replacing the EVAP canister shut-off valve Replacing the EVAP Canister Shut-Off Valve.
Continue - Verification
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Verification
Verification
Hint: After carrying out the repair, check that the fault has been remedied as follows:
- Ignition off.
- Reinstall all hoses/components.
- Erase diagnostic trouble codes (DTCs).
- Run the engine to operating temperature (above 70 °C (158 °F)).
- Air conditioning (A/C) off.
- Gear selector in P or N
- Engine idling
- Go into diagnostic test menu. Select leakage diagnostic.
- Wait until the diagnostic is complete. This can take up to 2 minutes.
Read off diagnostic trouble codes (DTCs).
Note! If the texts START CONDITIONS NOT MET or DIAGNOSTIC INTERRUPTED are displayed the diagnostic cannot be carried out. This can have several causes: for example high fuel evaporation, high canister charge, high tank pressure, fuel trim not active or a diagnostic trouble code (DTC) stored after the diagnostic has been activated. Check that no diagnostic trouble codes (DTCs) are stored, restart the car and try to activate the diagnostic again. Sometimes several attempts will have to be made before the diagnostic is carried out.
Does the diagnostic trouble code (DTC) recur?
Yes - VERIFICATION FAILED
No - VERIFIED
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VERIFIED - FAULT FOUND
VERIFICATION FAILED - Fault-tracing information
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Fault-tracing information
Information
Attempt New Test - Checking fuel tank pressure sensor
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