Question about 2006 Saturn ION

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I received the following code for a 2006 Saturn Ion with a 2.4 Litre motor P0446 what is is and how do I fix it?

Car has no idle issues or driveability issues.

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Trouble Code: P0446

Evaporative Emissions (EVAP) Vent System Performance

Possible Causes:


The EVAP system tests run when the engine is first started and meets the Conditions for Running the DTC. An intermittent condition could be caused by a damaged EVAP vent housing, a temporary blockage at the EVAP canister vent inlet, or a pinched vent hose. A blockage in the vent system will also cause a poor fuel fill condition.An EVAP canister, vent hose, or vent solenoid valve that has restricted flow may cause this DTC to set. Using a purge solenoid command with a scan tool will allow vacuum to be applied to the system instead of pressure. With the engine running, the EVAP canister vent solenoid valve open and the EVAP canister purge solenoid valve commanded to 100 percent, the fuel tank vacuum should not increase to more than 5 inches H2O.An EVAP canister filter that is restricted can cause this DTC to set. Refer to Evaporative Emission (EVAP) Canister Filter Replacement and Evaporative Emission (EVAP) System Cleaning .Disconnecting one component at a time while the EVAP system is under flow will help to pinpoint a restriction in the system.Reviewing the Failure Records vehicle mileage since the diagnostic test last failed may help determine how often the condition that caused the DTC to be set occurs. This may assist in diagnosing the condition.For intermittent conditions, refer to Intermittent Conditions .

Posted on Dec 29, 2012

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What does code PO446 mean how do i fix this code problem?


You have an Evap System problem and yes, this can cause poor gas mileage. Possible causes are:
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P0068, P0171, and P0446 and new ones down below


-I hate to say that but absolutely NO. If you don't know much about car. All these codes are emission code.
P0068 Mean Throttle position sensor.
P0171 Mean system too lean.
P0446 Mean evaporator emission control system has not correct flow
P0507 Mean Idle air control is too hight.
P0116 Mean engine coolant temperature.

Need to have a mechanic to check one by one to determine which part is effect before replace it.

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Most likely...one or more has gone bad, I believe this is yet another common problem with the Saturn ION...hhhhmmmm I wonder why they went out of business...

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Had to replace fuel pump in 2006 Saturn Ion... it's only THREE!


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