Question about 2000 Kia Sportage

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Codes P0303, P0451,P0440- gas cap replaced 2X check engine light

Car was just in for oil change and hose to fuel regulator was changes as smelling gas inside car. That was Janurary 5, 2009. Also asked mechanic to change plugs which he said didn't need done. January 23, 2009 car is running rough like misfiring so had codes checked had these three codes show up:
P0303
P0451
Po440
worried about driving car now till can figure this out. Only car to get around. Car has 100,000 miles on it. Just had fuel pump in gas tank fixed last year in 2008. Car sputters and acts like it is ready to die when at light or stop sign. Had to put it in Neutral when stopped... seemed to stop most of problem till put it in Drive to take off .

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  • 2 more comments 
  • writemarco May 08, 2009

    Hey, I have the exact same problem. If you got it fixed, please let me know what was done. Thanks!

  • Anonymous Mar 12, 2014

    car acts like its out of gas runs for a short when i prime the pump changed fuel filter still seems to misfire at speeds around 55 to60

  • Anonymous Mar 12, 2014

    car acts like its out of gas runs for a short when i prime the pump changed fuel filter still seems to misfire at speeds around 55 to60

  • Anonymous Mar 19, 2014

    fluid was dark so I changed oil

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PO303 # 3 cylinder miss fire: check ign coil and wires,
PO451
PO440: looks like perhaps something to do with the fuel line change! i would look further into it before traveling far perhaps a really well reputed garage can help?????

Posted on Jan 24, 2009

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I got a 2000 Buick regal gs what would cause me to get really bad gad mileage and you can smell gas in the car


First and most important, check the fuel rail,injectors and fuel lines to the engine and make sure you have no leaks. If you can't see the injectors on the back side, get a mirror and good light. This needs checked. Next check the fuel pressure regulator. pull the vacuum hose off of it and smell for gas in/at the hose. If you smell gas, replace the regulator. Next check all the vacuum lines broken ones cause a lean mixture and the computer will throw more gas to the engine. You must have the check engine light on, Check for codes. If it isn't check for codes anyway.

Dec 30, 2014 | Cars & Trucks

1 Answer

Also has codes p0303 cyt.3 misfire, also p0455 evap sys. with leak


A P0303 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #3.

A code P0303 may mean that one or more of the following has happened:
Faulty spark plug or wireFaulty coil (pack)Faulty oxygen sensor(s)Faulty fuel injectorBurned exhaust valveFaulty catalytic converter(s)Running out of fuelPoor compressionDefective computer

Possible Solutions:If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.


DTC P0455 - Evaporative Emission Control System Leak Detected (no purge flow or large leak).This indicates a fuel vapor leak or lack of purge flow in the EVAP control system. It means a large leak has been detected. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

A code p0455 most likely means one or more of the following has happened:
A loose or improperly affixed gas capA non-conforming gas cap (i.e. not factory/original brand)Other leak or damaged piece in EVAP system
With a p0455, the most common repair is to:Remove and reinstall the gas cap, clear the codes, and drive for a day and see if the codes come back.Otherwise, replace the gas cap, and/orInspect the EVAP system for cuts/holes in tubes/hoses (you may hear a vacuum noise or smell fuel), repair if necessary

Hope helps.

Mar 02, 2012 | Cars & Trucks

2 Answers

Pontiac Bonneville SE coming up with ODB2 scanner codes P0301 and P0440


Hi Becca:
P0301 Code - Cylinder #1 Misfire Detected
A P0301 code means that the the car's computer has detected that one of the engine's cylinders is not firing properly. In this case it's cylinder #1.

Symptoms may include:
the engine may be harder to start
the engine may stumble / stumble, and/or hesitate
other symptoms may also be present

A code P0301 may mean that one or more of the following has happened:
Faulty spark plug or wire
Faulty coil (pack)
Faulty oxygen sensor(s)
Faulty fuel injector
Burned exhaust valve
Faulty catalytic converter(s)
Running out of fuel
Poor compression
Defective computer

Possible Solutions:
- If there are no symptoms, the simplest thing to do is to reset the code and see if it comes back.
- If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. spark plugs). Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). Otherwise, check the coils (a.k.a. coil packs). In some cases, the catalytic converter has gone bad. If you smell rotten eggs in the exhaust, your cat converter needs to be replaced. I've also heard in other cases the problems were faulty fuel injectors.


P0440 Code - Evaporative Emission Control System Malfunction
This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

You likely won't notice any drivability problems.

A code P0440 could mean one or more of the following has happened:
The gas cap is not installed or working properly
The purge solenoid has failed
The canister is plugged and not working properly

With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
Inspect the EVAP system for cuts/holes in tubes/hoses
Inspect for damaged or disconnected hoses around the Evap purge solenoid
Check and/or replace the sensor
Check and/or replace the purge valve
Have a professional use a smoke machine to detect leaks

Other EVAP DTCs: P0440 - P0441 - P0442 - P0443 - P0446 - P0453 - P0455 - P0456-

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

Feb 15, 2012 | Pontiac Bonneville Cars & Trucks

1 Answer

Have had check engine light on over a year first code p0442 changed gas cap' purge soleniod,charcoal canisterdidnt work changed leak detection pump now codes p0440 and p0499 are coming up any idea


you can look this obd2 trouble code table.
for p0440, you can try this:

Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.

Inspect the EVAP system for cuts/holes in tubes/hoses

Inspect for damaged or disconnected hoses around the Evap purge solenoid

Check and/or replace the sensor

Check and/or replace the purge valve

Have a professional use a smoke machine to detect leaks

Aug 04, 2011 | Dodge Dakota Cars & Trucks

1 Answer

SMELLS GAS BURNS GAS CHECK ENGINE LIGHT COMES ON CODE PO440 SPUTTERS AT A CERTAIN HIGH SPEED WHEN IM AT A STOP LITE CAR SEEMS TO WANT TO GO


P0440-This Relates to System for Evaporative Emission.You will need to check the purge cannister that is in the engine bay and connects as a vent to fuel system and fuel tank.Loosen the fuel cap and roadtest,should change the faults or eliminate.Get back to me with your findings and we can work towards a solution.I hope that this helps.

Mar 30, 2011 | 1996 GMC Jimmy

1 Answer

The "Service Engine Soon" light


These are both EVAP emissions codes. The first thing I would do is open the fuel door and take a good wiff. If you smell gas replace the fuel cap.

If you don't smell gas the next thing you can do is visually inspect all the EVAP hoses and lines for cracks or holes. The EVAP system consists of a purge solenoid, a charcoal canister, a vent solenoid, a fuel tank pressure sensor, and misc. lines and hoses. All of these will need to be visually checked for damage.

If you don't see anything with a visual check than the next step would be to have the EVAP system smoke checked for leaks. A smoke machine will be used to slightly pressurize the EVAP system with smoke. Where ever the smoke comes out is where is is leaking.

Mar 19, 2011 | Saturn Vue Cars & Trucks

3 Answers

Check engine light came on, says its a evaporative emission system, code# P0440, what is that?


What does that mean?
This indicates that a part of the EVAP control system is no longer fuctioning correctly. The EVAP system consists of many parts, including (but not limited to) the gas cap, fuel lines, carbon canister, purge valve, and other hoses. The (EVAP) emission control system prevents the escape of fuel vapors from a vehicle's fuel system. Fuel vapors are routed by hoses to a charcoal canister for storage. Later, when the engine is running a purge control valve opens allowing intake vacuum to siphon the fuel vapors into the engine.

Possible Causes:
A code P0440 could mean one or more of the following has happened:
  • The gas cap is not installed or working properly
  • The purge solenoid has failed
  • The canister is plugged and not working properly
Possible solutions:
With a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:
  • Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
  • Inspect the EVAP system for cuts/holes in tubes/hoses
  • Inspect for damaged or disconnected hoses around the Evap purge solenoid
  • Check and/or replace the sensor
  • Check and/or replace the purge valve
  • Have a professional use a smoke machine to detect leaks
HTH,

Mike...

Dec 04, 2009 | 1996 Chevrolet Cavalier

3 Answers

2001 Avalon Check engine codes P0440,p0441 and p0446.


yes it would be a smart thing to do and no it is not that hard it should onlt have two bolts holding it on

Aug 03, 2009 | 2001 Toyota Corolla

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Kia Rio Check Engine Light


check the fuel line hose near the fuel regulator for wear as they tend to leak or corrode causing a gas smell inside the car. My 2000 Kia Sportage just had the same problem with the gas smell inside the car.

Dec 11, 2008 | 2002 Kia Rio

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