Question about 2003 Mitsubishi Outlander

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How do I reset the check engine soon light? I needed a new gas cap and it has been on for a few weeks but my car has not been driven and the light is still on.

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If you disconnect the battery for about 10 minutes that should reset the vehicles onboard computer and the check engine light should be off when you restart it.

Posted on Nov 23, 2010

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2 Answers

Gas cap light stays on


Take off your gas cap and put it back on if that does not fix it so the light goes off replace the gas cap. This light usually indicates. A problem with the gas cap. It maybe on crooked or is not sealing properly in which case it would need to be replaced. It may need to be driven a few miles before the light goes off

Jul 27, 2015 | Cars & Trucks

1 Answer

My check engine light came on yesterday and after taking it to get the code , it was for the gas cap. I filled it up with gas and replaced the cap tightly. How do I get the light off.


It depends on the make and model of the vehicle. Some newer vehicles, once the car is driven with the cap loose, or the seal wears to the point of leaking pressure causing the light to come on, you must take it to the dealer or service center to get the light reset. You can try unhooking your negative battery cable for a few minutes to see if that erases the engine light.

Oct 13, 2012 | Volvo S40 Cars & Trucks

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Why does service engine soon with gas cap code keep coming on even after buying new gas cap?


Get gas cap from dealer as some vehicles are having issues with the after market caps. What is the actual code and what's the vehicle year, make and model?

May 20, 2012 | Pontiac Grand Am Cars & Trucks

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Service engine soon light came on, I took it to get it checked out, they said it was the gas cap not sealing properly, got a new gas cap, the light went out, it has only been a few hours, it is on aga


there is, unhook the battery let the car set for an hour and re hook it. but i can tell you it will come back on. the reason they told you it was a gas cap is the code told them it was an evap/purge system problem. this is very commonly the gas cap. but in your case it might not be as the light came back on.

Feb 12, 2012 | 2001 Buick LeSabre

1 Answer

Hello, I asked the following question a few weeks ago and received a response that this sounded correct. We replaced the Gas Cap and the check engine light is still on after driving about 60 miles. What...


some times light wont reset self got to have it shut off autozone want shut it off but most advance auto will or disconect pos. battery cable for 30 min. it will normaly reset light

Jan 19, 2011 | Hyundai Elantra Cars & Trucks

2 Answers

Is there a way I can reset the engine light so it


if you go to autozone they will check the codes for free,and have them reset it.
don't unhook the battery some some might tell you,this will just open a new can of worms,like the radio locking its self up and the alarm system arming up.

Jan 27, 2010 | 2007 Pontiac G5 Gt Coupe

1 Answer

Check engine light on and will not go off went


if its code p0442 the most common problem is gas cap unless they reset the code for u the vehicle has to cycle- start up a few times or reset after certain amount of miles are driven--but-- this code also can b a cracked, broken,or disconnected vent line,go back to auto zone have them rescan and check for code and have them reset the trouble code if it comes back on than a problem still is present

Oct 26, 2009 | 2004 Chevrolet Corvette

1 Answer

My check engine trac off light came on


This happened to me as well, just a few weeks after buying our 1999 ES300. Took it into Lexus for regular maintenance and to check this out. Apparently, if you don't replace the gas cap correctly and tight enough this can cause the 'trac off' light to come one. It will go off a little while after the cap has been replaced correctly. This also happened with my 2006 Murano, 'check engine soon' message.

Jul 10, 2009 | 1999 Lexus ES 300

2 Answers

Check engine light keeps coming on replaced gas cap already


Your problem is in the evaporative emission system which is designed to prevent the escape of fuel vapors from the fuel system. Leaks in the system, even small ones, can allow fuel vapors to escape into the atmosphere. The light coming on can be caused by one of the following:

1. Defective or loose fuel cap
2. EVAP canister or hose cracked- not connected
3. Purge or vent solenoid defective
4. Vacuum leak at engine Government regulations require on-board testing to make sure that the evaporative (EVAP) system is functioning properly. The leak detection system tests for EVAP system leaks and blockage. It also performs self-diagnostics. You have tried the easy fix, the gas cap. Finding the leak now will require special equipment and testing procedures, might be better left to a professional.

Please let me know if this information is helpful. Positive feedback is appreciated. Thank You!

Mar 18, 2009 | 2003 Dodge Caravan

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