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Joe Russell Posted on Jan 05, 2018
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What does code PO446 mean how do i fix this code problem?

2006 Saturn ion 2, 2.2L my car is burning more gas than it use to could the code PO446 causing it to burn more gas?

2 Answers

EdCarCal

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  • Saturn Master 1,326 Answers
  • Posted on Jan 05, 2018
EdCarCal
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You have an Evap System problem and yes, this can cause poor gas mileage. Possible causes are:

  • Plugged vapor canister
  • Faulty vent solenoid
  • Pinched or blocked EVAP hose
  • Faulty FTP sensor

  • 2 more comments 
  • Joe Russell Jan 05, 2018

    Where are these parts located?
    Plugged vapor canister
    Faulty vent solenoid
    Pinched or blocked EVAP hose
    Faulty FTP sensor

  • EdCarCal
    EdCarCal Jan 05, 2018

    If you intend to troubleshoot/replace a faulty device in this system, you will need more help than I can give you here. I suggest you get ahold of the service manual for this vehicle (or visit Alldatadiy.com) for all the information you will need.

  • Joe Russell Jan 10, 2018

    i drove my vehicle about 30 miles speed up to 65 MPH with the scan tool connected i was checking live data before i start driving i remove the cooling fan relay on the scan tool the reading was from 183.2 to 185.0 on the highway when i came to a stop and let the engine run for about 2 minutes the reading went to 194.0 i do have a code PO128.

  • EdCarCal
    EdCarCal Jan 14, 2018

    Usually a thermostat problem - replace it.

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Jose Ma DM.

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  • Master 540 Answers
  • Posted on Jan 05, 2018
Jose Ma DM.
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Hi, regarding to code PO446 please check the following information.
Possible causes are:
- Plugged vapor canister
- Faulty vent solenoid
- Pinched or blocked EVAP hose
- Faulty FTP sensor
Tech notes
Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition.
When is the code detected?
- The Powertrain Control Module (PCM) sets the P0446 code if the vacuum decay rate is greater than a predetermined value.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Possible a noticeable fuel odor caused by the release of fuel vapors.

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5 Related Answers

Anonymous

  • 160 Answers
  • Posted on Mar 15, 2009

SOURCE: 2006 saturn ion 2.2L engine code came up for EVAP purge/vent

replace your pvc vavle then have your cars underbody washed

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Anonymous

  • 2 Answers
  • Posted on Oct 03, 2009

SOURCE: saturn ion fuel pump

Misnikie32 . .. I just had the same problem around the time you figured out your problem and I just got it fixed yesterday. For almost 3 weeks I had starting problems and I constantly smelled gas. The problem is a safety issue and the car needs to be recalled. The hose that is connected to the fuel pump is cracked. Since the hose is incorporated with the fuel pump, the entire mechanism needs to be changed. Look at spending about 700.00 . I informed saturn and told them my life was at danger. Please contact them on their website and goto your state's attorney general and launch a complaint, as well as the office of defective investigations and the NTSAB (google them). This needs to be brought to their attention and all owners of this car. I googled this and many other people are having this problem. Some are even on this forum. PLEASE DO THIS ! ! ! !

Anonymous

  • 1 Answer
  • Posted on Nov 03, 2009

SOURCE: Gas leak in 2006 Saturn Ion

My car has had these symptoms. And just yesterday I started smelling gas. I will get it checked immediatly. If it is that I will file for a recall also.

Anonymous

  • 2 Answers
  • Posted on Dec 23, 2009

SOURCE: Saturn Ion 2006, Check engine light

I had the SAME problem...do you smell any fuel smells? Is your car getting less MPG and is does it have less excelleration? It is the Fuel Injector(s)...

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...

Anonymous

  • 1 Answer
  • Posted on Jan 29, 2010

SOURCE: 2006 saturn ion dome light goes on by itself and

When this happened to mine it ended up being a bad door switch. The alarm, dome/map lights and electric door locks are all connected to the door switches. It cost $65 for diagnosis, parts and labor at Saturn of South Burlington VT

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I had the SAME problem...do you smell any fuel smells? Is your car getting less MPG and is does it have less excelleration? It is the Fuel Injector(s)...

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Got a code for the EVAP purge.vent solenoid circuit on 2006 ION

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2006 saturn ion 2.2L engine code came up for EVAP purge/vent

replace your pvc vavle then have your cars underbody washed
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