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Check Engine light is on ,Code 0446- replaced gas cap , the car runs great with light on , what should I do

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  • garthmw Aug 01, 2009

    Check Engine Light is on Code P0446 replaced gas cap

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Hello I have 1997 toyota Camry with code 450 and pending code 446 I took the gas cap off this morning with the car running and screwed it back on tight and that's where I got the pending code I hear it...


These codes usually trigger the check engine light to ON if the car is fueled or fuel tank cap is removed with the engine in start position.
To delete the codes, remove the key from ignition, remove the battery negative terminal for 5 Seconds or more. Reconnect the battery terminal, start the engine, let it idle for 10 minutes.
Error Code: P 0446
Description:
Evaporative Emission (EVAP) System, Vent Control - Circuit Malfunction
Possible Cause:
Wiring.
Evaporative emission (EVAP) canister purge valve.
Engine control module (ECM).

Error Code: P 0450
Description:
Evaporative Emission (EVAP) Pressure Sensor - Circuit Malfunction
Possible Cause:
Wiring.
Evaporative emission (EVAP) pressure sensor.
Engine control module (ECM).

Hope that will work. If the problem persists contact a service technician.

Feb 26, 2014 | Cars & Trucks

1 Answer

CHECK ENGINE LIGHT WENT ON AFTER GETTING GAS


When the Fuel Cap is not attached, your fuel tank loses pressure and a sensor detects this. This causes your Check Engine Light to come alive. Replace the cap and wait for the code to disappear or go to Autozone and have them clear the code for you.

Oct 25, 2011 | 2001 Lincoln Continental

1 Answer

2003 toyota sequoia trouble shooting codes Po441, 0442 (Small leak detected), and 0446. Each code appears twice.


a lot of times, this is the gas cap not being put on tightly (one of the codes) you do still have to have a scanner to turn the light out, then see what codes come up

Jul 18, 2010 | 2003 Toyota Sequoia

2 Answers

Gas cap and service engine lights come on


there is a pressure sensor on the fuel tank, it is most likely bad and makes the system look like it has a leak to the computer that monitors the sensor, replace the evap system gas tank pressure sensor

May 28, 2010 | 1994 Cadillac DeVille

3 Answers

Check engine light comes on in a 07 sebring when the gas cap is removed and the engine is started there is no change in the indicator.


this is normal, you should not have engine running when re-fueling, fuel gauge moves very slowly if key is on while fueling, turn key off and then on and should read proper level.

Mar 01, 2010 | Chrysler Sebring Cars & Trucks

1 Answer

Check Engine light code 1506 for 2000 Mazda 626


Here is some problem in your car wiring, some of the jack is lose or unplug near relay box,

Sep 16, 2009 | 2000 Mazda MPV

1 Answer

P0446


Check for any damage to the cap or on the wiring if no damage is visable replace the cap.

Aug 27, 2009 | 2007 Ford Explorer Eddie Bauer

1 Answer

Check engine light keeps coming on


The 1st thing to do is find out which one of over 100 codes is stored in the engine computers memory, whenever the check engine light comes on a code for that problem is stored in memory. You can go to any Auto-Zone parts store and they will run this code read test for free, then post them back here and I will help figure out what has gone wrong.

Nov 16, 2008 | 1998 Chevrolet Prizm

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