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What is the meaning of codes PO452, PO463 and PO128?

My 2006 saturn ion 2 seem to be burning more gas and the fuel gauge not working right.

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  • Expert
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The problem you are describing comes down to a tune up and a new thermostat get them done and clear the codes

Posted on Nov 17, 2018

Testimonial: "i replace air filter november 8, 2017 and i replace spark plugs april 16, 2016 how often i do a tune up?"

  • Joe Russell Nov 21, 2018

    what is the name of spark plugs the 2006 saturn ion 2 2.2L use?

  • Joe Russell Nov 24, 2018

    what is the name of spark plugs the 2006 saturn ion 2 2.2L use?

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  • Saturn Master
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The codes p0452 and p0463 refer to the fuel sender unit. There may be a wiring problem and the gauge is not working properly.
p0128 indicates that the engine is running too cold. Possible stuck thermostat in open position. This would cause the engine to run a richer fuel mixture.

Posted on Nov 17, 2018

Testimonial: "how do i check the wiring? if the thermostat is stuck open would hot air be coming through the vents? there is hot air coming through the vent."

  • Kardoc Nov 17, 2018

    The problem may be the fuel sensor it self giving the PCM faulty readings. Hook up a scanner will give you father information. The open Tstate would actually keep the engine cooler. If you always have heat in the vents, you may have a door problem or a heater control valve problem.

  • Joe Russell Nov 17, 2018

    when you say Hook up a scanner do you mean to check for live data?

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Macklintok
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SOURCE: Can someone help with this

It means there is a problem in the fuel sending unit circuit. The PCM uses a 5v reference on this system to calculate fuel level. There is either a problem in the sending unit or related wires.

Posted on Sep 14, 2010

Testimonial: "Thanks . very helpful "

co7196
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SOURCE: 2003 saturn ion will not start....

Is there gas in it?

Posted on Jun 29, 2009

rtpflh
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SOURCE: What does it mean when the dashboard indicator

that is your 'check engine' light.if it stays on, one or more sensors on your engine has sent a 'trouble code' to the on-board computer.a diagnostic code reader needs to be connected to it to determine the cause.

Posted on Oct 03, 2009

  • 14036 Answers

SOURCE: trouble codes PO440 and PO452

PO440-EVAP SYSTEM NO FLOW DURING PURGE.CODE PO PO452 - FUEL TANK PRESSURE SENSOR CIRCUIT LOW INPUT.

Posted on Oct 07, 2012

AndrexT
  • 23529 Answers

SOURCE: What causes gas smell from 2006 Saturn Ion--no gas puddles, or loss of gas mileage. Seems to happen after car is turned off and fuel level in gas tank does not seem to be a factor.

This is often caused by corrosion on top of the gas tank. Mud, dirt and water get thrown on top of it and causes the metal to perforate. You can smell it on the move because the fumes dissipate at the rear of the vehicle.

Posted on Nov 08, 2016

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1 Answer

The fuel gauge don't go all the way on full why?


MANY DO NOT GO THERE UPON FILLING BUT WILL IN A FEW MINUTES USUALLY I HAVE BEEN ADVISED TO NEVER TOP OFF MY TANK AS IT MESSES UP THE VACUUM SYSTEM

Nov 14, 2018 | Saturn Cars & Trucks

2 Answers

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

Jan 05, 2018 | Saturn Cars & Trucks

1 Answer

Trouble codes PO440 and PO452


PO440-EVAP SYSTEM NO FLOW DURING PURGE.CODE PO PO452 - FUEL TANK PRESSURE SENSOR CIRCUIT LOW INPUT.

Oct 07, 2012 | Chevrolet Avalanche Cars & Trucks

1 Answer

2000 saturn sl2 getting code PO452


I don't have a definition of the code for a Saturn.
The generic definition is for a low pressure reading from the EVAP system. The computer pressurizes the fuel tank and evap system every few minutes to check for vapor leaks. The code means the pressure sensor is showing the tank is not holding pressure which usually means there is a leak somewhere.
If this is happening to your car, it could be the gas cap, a hose from the tank to the vapor canister, a faulty valve, or a leak in the tank.
I doubt it would cause the car to run rough.

Aug 21, 2012 | 2000 Saturn SL

1 Answer

Can my 2005 Saturn ion 2 automatic handle e10 fuel?


Yes you can use E10 fuel in your Saturn Ion. A lot of gas these days has about 10% ethanol in it, the only thing you want to watch for is that the E10 fuel meets the minimum octane for your vehicle which is 87.

Mar 01, 2011 | 2005 Saturn ION

1 Answer

Engine codes po452, po440,po122. electrical problem?


You should have 3 grounds 1 from the battery to the engine one from the engine to the body and then from the engine to the frame. Look for these grounds they look like braided flat wire. I think you also may have a loose plug or a cut in the main harness from the rear of the vehicle. Look along the frame as the harness runs from back to front. Looking at your codes I do not think they are related to your electrical problem. I gave up trying to fix my gear indicator, I had to replace the fuel tank sensor to get my gas gage working right.

May 18, 2010 | 1998 Chevrolet Blazer

2 Answers

I have a 1998 saturn sl1 with a code PO452 how do i fix it


CODE PO452 IS FUEL TANK PRESSURE SENSOR CIRCUIT LOW INPUT CONDITIONS.YOU COULD HAVE A FAULTY FUEL TANK PRESSURE SENSOR.

Apr 18, 2010 | 1998 Saturn SL

2 Answers

Po463 fuel level sensor circuit voltage too high. how to fix?


fuel level sensor is part of the fule pump assembly. code is telling you sensor is malfuctioning. do gauges work? if yes i would leave problem alone till you need a fuel pump

Feb 23, 2010 | Isuzu Rodeo Cars & Trucks

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