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Check Engine Light, How Long Does It Last?

3.2K views 18 replies 6 participants last post by  05rollaxrs  
#1 ·
I got a CEL on my 2005 yeterday morning and it turned out to be a loose gas cap, does anyone know how long it will take before the light goes off?

I know the easiest thing to do is have it resetted but I don't wanna take an unecessary trip to the dealership.
 
#3 ·
Hummm that sounds familiar - I know this has been discussed somewhere.

There's either some combination of events with the ignitiion...or you pull the battery cables. Let me look around - it might come in handy when I forget to "triple-click" my gas cap. ;)
 
#5 ·
rolla-XRS said:
Hummm that sounds familiar - I know this has been discussed somewhere.

There's either some combination of events with the ignitiion...or you pull the battery cables. Let me look around - it might come in handy when I forget to "triple-click" my gas cap. ;)
i know...i felt like an ass after finding out what the problem was, now i just cant stop staring at that annoying yellow light...
 
#8 · (Edited)
rolla-XRS said:
As long as you're sure that the CEL was caused by the gas cap, you should be okay. But I'd still take it to the dealer - they can do it quickly - probably as you wait.
yup im pretty sure, checked the gas cap right after i got to work and it came loose after barely turning it counterclockwise, ended up tightening it to 3 clicks. id rather not disconnect the battey to reset the light, but then again if i do this and it comes back then thats a trip to the dealership right there...

im hoping the CEL will go away on its own. engine is drivin perfectly fine, nothing wrong with starup, no odd vibrations, shiftpoints are normal.
 
#9 ·
Well resetting it by taking the battery out will clear all existing error codes, so if you had a system failing and it stored the code into the computer and you reset it and it didnt come back and the system failed, well. I'd think this would be worse than just driving to some garage with a OBD2 reader and getting the codes out.
 
#10 · (Edited)
Flashmn said:
I think the OBD II standard minor errorcodes go away after 4 cycles and bigger ones have to be factory reset.
How long is 4 cycles and what does that usually consist of?

I filled up my tank wednesday night, got the light + tightened the cap friday morning, and have started the car probably about 5 times since then.
 
#12 ·
Yeah I thought your CEL went on right after you filled up at the pumps....not sometime thereafter.

Go to the dealer and have it checked out. Who knows if that's the real cause...you could be a coincidence and you might have a real problem - covered under warranty of course.
 
#13 · (Edited)
rolla-XRS said:
Yeah I thought your CEL went on right after you filled up at the pumps....not sometime thereafter.

Go to the dealer and have it checked out. Who knows if that's the real cause...you could be a coincidence and you might have a real problem - covered under warranty of course.
yeah ill probably have it checked out on monday, the car is only about 2 months old now, so the warranty is definately something to take advantage of.

also, it almost seems like ive lost a little bit of power, it may be my paranoia, but since the light came on yesterday ive been observing everything closely. so takin it back to the dealer seems like the best way to go.

i was hoping to see if the cel would go out, cause i cant really afford to not have a car for a day (work and such), but sometimes you gotta do whats gotta be done
 
#15 ·
rated_w said:
dealer will charge you 81 dollars or something to reset the light..

I had the light go on me a few days ago.. unplugged the battery and left it for 5 minutes.. it went away .. but everything. clock was reset.
car is still under warranty by the dealership, if they try to charge me ill just laugh at them and drive off
 
#16 ·
Try to reset the E.C.U by unplugging the battery first. If the light still comes on after that then take it to the dealer and let them work on it. Make sure if you put on any performance mods that you either take them off or make sure they don't corrolate to the problem, otherwise the dealer people will defenetly look at all performance parts first and tell you that they are the problem and charge you for that, cause all after market parts void the warranty.
 
#17 ·
05rollaxrs said:
car is still under warranty by the dealership, if they try to charge me ill just laugh at them and drive off
not really too sure if it will be covered by warrenty. mine was brought in under warrenty and because of the fact that it was my own fault for not tightening it properly.. they charged me 81 dollars (from memory) for the diag and labour..
 
#18 · (Edited)
rated_w said:
not really too sure if it will be covered by warrenty. mine was brought in under warrenty and because of the fact that it was my own fault for not tightening it properly.. they charged me 81 dollars (from memory) for the diag and labour..
ah i see, well i wasnt able to get to the dealership this morning, but since yesterday and today, ive been feeling an overall loss of power from the engine, CEL is still on... ive started to push the car much less and drive more conservatively.

told a buddy of mine i wanted to take it in today, so he could drop me off at work but he said to stop worrying about it, well i think im gonna smack him the next time i see him and take it in tomorrow cause i need some peace of mind...only 1085 mi on the odo! :mad: ill try to keep some updates on this.
 
#19 · (Edited)
hmm...the light went away this morning when i was about to take it to the dealership. engine still running fine...very strange. i went ahead and drove it into work to see if it would come back, no sign of it yet. i probably wont take it in unless the does light comes back. (although it wouldnt hurt to do it and get my free 1,000 mi. check up)

i suppose at this point the only explanation is loose gas cap :confused: