Flow Too High. Permanent Fault

Checking Solenoid Valve
- Ignition OFF.
- Carefully disconnect the lilac hose from the solenoid valve.
- Connect a vacuum meter to the solenoid valve.
- Start the engine and idle it.
- Engine coolant temperature (ECT) above 60°C (140°F).
- The vacuum meter should not give a reading.

If reading is OK:
^ Proceed to: Checking Pulsed Secondary Air Injection System Valve section below.

If reading is incorrect:
^ Proceed to: Checking Solenoid Valve Signal Cable section below.





Checking Pulsed Secondary Air Injection System Valve
- Disconnect pulsed secondary air injection system (PAIR) valve from pipe, leave hoses in place.
- Ignition ON.
- Activate pulsed secondary air injection system pump.
- No air should escape from the pulsed secondary air injection system valve outlet.

If reading is OK:
^ Proceed to: Checking For Air Leakage section below.

If reading is incorrect:
^ Try a new pulsed secondary air injection system valve.
^ Proceed to: Verification section below.





Checking Solenoid Valve Signal Cable
- Ignition OFF.
- Disconnect solenoid valve connector.
- Connect vacuum meter to solenoid valve.
- Start the engine and idle it. Engine coolant temperature above 60°C (140°F).
- The vacuum meter should not give a reading.

If reading is OK:
^ Check cable between solenoid valve terminal 2 and engine control module (ECM) # A37 for a short-circuit to ground.
^ Proceed to: Verification section below.

If reading is incorrect:
^ Try a new solenoid valve.
^ Proceed to: Verification section below.





Checking For Air Leakage
- Ignition OFF.
- Check for air leakage in the intake system.
- Check for air leaks in the intake system.
- Is the intake system airtight?

Yes:
^ Check for air leakage in the exhaust system.
^ Proceed to: Verification section below.

No:
^ Remedy as necessary.
^ Proceed to: Verification section below.





Verification
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 PAIR diagnostic.
- Wait until the diagnostic is complete. This can take up to 2 minutes.
- Read off diagnostic trouble codes.

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. Short-term fuel trim unstable, long-term fuel trim stop, engine coolant temperature above 103°C (217.4°F) or a diagnostic trouble code has been stored after the diagnostic has been activated.
- Check that no diagnostic trouble codes 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 recur?

No:
^ Fault corrected.

Yes:
^ Proceed to: Fault-tracing Information section below.

Fault-tracing Information
The verification result shows that the fault persists.

- Do you want to exit fault-tracing?

Yes:
^ Fault not corrected.

No:
^ Proceed to: Checking Solenoid Valve section above.