I have a check engine light on and found my gas cap loose. I secured it 3 days ago and the light still remains on. If that was the problem, will I have to drive more "drive cycles" to have code/check engine light cleared, or will I have to clear the code with a scanner (or other method). Thanks, John K
An expert who has achieved level 2 by getting 100 points
An expert that got 5 achievements.
An expert whose answer got voted for 20 times.
An expert who has answered 20 questions.
Re: how to clear codes/check engine lite
Under the hood on the left side is a fuse panel, if there is a single EFI fuse, remove it for 30 seconds or so, if there is more than 1 efi fuse remove them both along with the fuse marked e.t.c.s. leave them out for 1 minute or so and that will erase the code and reset the light. make sure the key is switched off before removing fuses
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
Did you erase the code after you repaired the problem ??..Emission leaks are usually not affective
to the engine performance...But a gas cap is for some reason...You actually need an emission
leak tester hooked to it ...Or a DRB III eng. analysis tool....I am chrysler tech.....
But normally emission troubles wont make it run rough unless it is very bad !
It may be your O2 sensor.Doublecheck gas cap security.....make sure old code is cleared before you make any more adjustments....Check engine for any vacum leaks...This could be the problem....Because it shouldnt run good for a day after changing only the gas cap...
Make sure all electrical connections ( PLUGS/WIRES/INJ.CONNECTIONS...etc..) are good...
You may have to take to dealer to clear codes and recheck.....Maybe update PCM
Hope this helps.......................................Level II CHRYSLER ..................Metalpoet
code P1456 set when there's small leak in the fuel tank system.
Most known reason for P1456:
-Didn't tight fuel cap on until it click for more that 3 time after fueling up and drove the car too long with cap loose.
-or a bad gas cap.
I'll try tighting the gas cap.
clear check engine.
if code come back, replace gas cap and clear check engine light again.
2004 Honda Pilot engine light came on this morning. Last bought gas 5 days ago. Auto Zone checked and found code P1456, emission control system leak detected (fuel tank system)
1) Loose fuel cap
2) Vapor canister saturated
3) Failed vent solanoid
4) Failed purge solenoid
Would guess that canister would be dealer only but never hurts to check the local parts store.Could also check online parts store.They say this problem comes from topping of your tank.When fueling and the pump shuts off you are not to put any more in.Just a thought.
It can be your CO2 sensor. And another one that all ways makes the check engine light come on is your gas cap be for you turn your car on make sure your gas cap is on like 3 clicks then go clear the codes. If that doesn't help then good luck
The gas cap turned the light on ( I assume you knew that), go to kragen auto and ask them to run a OBD 2 code test, when they get the code ask if they will clear it for you with the scan tool, this is free, other parts stores do this as well for free. If you want to wait the light will clear after a complete drive cycle, this can take up to week depending on what kind of useage the car gets.