"CHECK ENGINE LIGHT"


txmomoftwins
10-18-2004, 02:58 PM
I have a 2002 Chevrolet Cavalier 2.2l 4 door sedan. Well 2 days ago the Check Engine Light came on for the very first time. It has about 54,000 miles so far on it. I read up on it in the car manuel that came with the car and I did check the gas cap on it and it was opened. So I re-tightened it and the the check engine light still came on. Well today I had my husband take it to the nearest AutoZone and they did the check engine light for free and it came up with a code of 440 I believe is what my husband had stated. Something to do with the Emmission. So if it is the emmission what can I do to fix it? I would like to see if I can do a simple way first before taking it to a automotive shop. As far as its running condition it's running fine. No problems to complain about yet...lol!!

Mangoamerican
10-18-2004, 04:44 PM
you might want to check the oxygen sensors ;)

txmomoftwins
10-18-2004, 05:23 PM
you might want to check the oxygen sensors ;)

Ok will look into that and see if that will work.

godenm
10-18-2004, 08:55 PM
was it po440 code? all the codes for that car should start w/a (p). ...if so then that is code for evap. emmissions fault, and more than not most problems that associate w/ that are simple vacuum leaks. there is a charcoal canister that filters any evaporated fuel from the throttle body gas tank etc. it could be something as simple as loose gas cap. when you got the check eng. light tested did you get it reset at the same time , if not you can by them at autozone while they hav the scan tool connected. if it was gas cap (most likely) then it shouldnt come back on.

5150cavy
10-18-2004, 09:06 PM
I looked up this code on the gm service website and this code does not have anything to do with a o2 sensor. It is for the evaporative emissions system. If your gas cap was loose and its tight now disconnect your battery for 5 mins and reconnect it to erase the code. If the light comes back on then you will have to test the system which will require you to take it to a shop to have it tested, your best bet would be to take it into a dealership because they have the correct tester to do this and should take no more than an hour to check out. I work for a chevy dealer and have done this test myself and it is very easy to do. Good luck and let us know what it was.

BlazerLT
10-18-2004, 09:08 PM
you might want to check the oxygen sensors ;)

P0440 Evaporative Emission Control System Malfunction

Please know what you are talking about before you send this guy down the wrong path. How you got O2 sensors from that is concerning.

BlazerLT
10-18-2004, 09:09 PM
I have a 2002 Chevrolet Cavalier 2.2l 4 door sedan. Well 2 days ago the Check Engine Light came on for the very first time. It has about 54,000 miles so far on it. I read up on it in the car manuel that came with the car and I did check the gas cap on it and it was opened. So I re-tightened it and the the check engine light still came on. Well today I had my husband take it to the nearest AutoZone and they did the check engine light for free and it came up with a code of 440 I believe is what my husband had stated. Something to do with the Emmission. So if it is the emmission what can I do to fix it? I would like to see if I can do a simple way first before taking it to a automotive shop. As far as its running condition it's running fine. No problems to complain about yet...lol!!

P0440 Evaporative Emission Control System Malfunction

This is covered under your warranty, don't do anything yourself and have GM dealer repair it for free.

godenm
10-18-2004, 09:17 PM
i forgot about warranty, also its not a real good idea to unhook battery to reset computer, it actually does not reset it, it just pushes that code to the side(so to speak) & keeps it in memory, you should hav it erased with a obd2 scan tool. they will do it 4 free at autozone, so why not just do it right?. plus, some people dont know how to reset radio after disconnecting battery.

odinsgrudge
10-18-2004, 10:16 PM
I had this problem last week. It turned out the O-Ring on my gas cap was bad and had to be replaced. But if it is still under warrenty, definitly go get it checked out.

Mangoamerican
10-19-2004, 02:49 AM
P0440 Evaporative Emission Control System Malfunction .. the o2 sensor measures the fuel content of the exhaust stream.. a critical part of the emission control system, right?

BlazerLT
10-19-2004, 03:00 AM
No, they are two different system.

If it was an O2 sensor, it would give an O2 sensors code.

Here read up on what an evaporative emmision system is:

http://www.autoshop101.com/forms/h62.pdf

Rickstar
07-28-2005, 11:25 AM
Does anyone know how to actually check the fault codes on a Cavalier?? What do i do to get the reading>????

Thanks

Rstar

BlazerLT
07-28-2005, 01:17 PM
Depends on the year.

rogmar420
09-16-2005, 03:11 PM
I have a 2002 Chevy Cavalier & the 'check engine' light came on. I did a search and found this forum, read the thread, and I thought I might not have heard the 'click' the night before.

The cap was covered in gas and I didn't want to touch it in the first place, and I really didn't close it all that well. I checked the gas cap, made it 'click', drove it around for a few minutes, and the light remained on.

I then disconnected the battery for 10 minutes. When I reconnected the battery and started the car, the 'check engine' light was off, a chorus of angels started singing, flowers bloomed about my feet, and a complete stranger tried to hand me a briefcase full of money!

Well, ok, the light stayed off and that was about it. But isn't that enough?

jakegday
09-17-2005, 07:20 AM
since the thread has already been brought back i thought i'd add....

plus, some people dont know how to reset radio after disconnecting battery.

if those people arent smart enough to pick up their owners manual and look for the step by step instructions (that ARE in the owners manual) they dont deserve to have the radio

BlazerLT
09-18-2005, 07:10 AM
lol, so true.

rogmar420
09-18-2005, 05:21 PM
"if those people arent smart enough to pick up their owners manual and look for the step by step instructions (that ARE in the owners manual) they dont deserve to have the radio"

That's nice. Must make you feel pretty smart, eh?

Well, I'm not gonna be the one to burst your bubble today, I'll simply point out that a severe lack of owners manual sent me to the web in the first place. I've been using, surfing, teaching and designing for the web for about 10 years now, and if it's one thing that I've learned, you can pretty much find ANYTHING you want to on the web.

Trouble is, you also find alot of people who only THINK they know what they are talking about. Gotta sort thru the junk.

I looked for an answer, I found it. It's that simple. Does it matter where I find the answer if it is the right one? And what does a radio have to do with anything?

Not intending to feud with anyone, just curious. A radio?!?

Peace and ball bearings to all!

jakegday
09-18-2005, 06:02 PM
And what does a radio have to do with anything?



oh i dont know, its only what the person i quoted was talking about.....

rogmar420
09-19-2005, 10:51 PM
Oh... well, I suppose if I had read the entire thread, I'd KNOW that, wouldn't I? :)

jakegday
09-20-2005, 08:37 AM
Oh... well, I suppose if I had read the entire thread, I'd KNOW that, wouldn't I? :)

lol, you made that really long post because of what I said and you didnt even realize why i was saying it, and then you went on to talk about how much you know about and work with the internet soo much

jakegday
09-20-2005, 08:41 AM
by the way thats a good lookin 420 in your name

mnKISSgirl
09-20-2005, 01:32 PM
by the way thats a good lookin 420 in your name

I'll second that :smokin:

weaselphd
01-25-2006, 06:08 PM
i forgot about warranty, also its not a real good idea to unhook battery to reset computer, it actually does not reset it, it just pushes that code to the side(so to speak) & keeps it in memory, you should hav it erased with a obd2 scan tool. they will do it 4 free at autozone, so why not just do it right?. plus, some people dont know how to reset radio after disconnecting battery.


Just as an update... i just got back from autozone and they NO LONGER will RESET the computers codes...

:2cents:

sweetpolly
05-21-2007, 05:10 PM
Hello and I have some news on your problem with the 440 code. I have a 2003 Cavalier and I too had this code show up on my car. I replaced the gas cap because the gasket was bad on it. The place I bought it from cleared my code out for me. Low and behold it came back on. I went and had a special test done called a "smoke" test to find the "leak in the emissions system. The problem was a vent solenoid. The part number is (15215729). When it goes it causes the vacuum sensor not to sense if gas vapors are escaping. I had the extended warranty but the total cost was about $93.00. I hope this helps anyone with this problem. So if you get the "smoke" test done it is approximately $55.00 plus the part which was about $28.00. Well good luck to all.

:wink:
sweetpolly


I have a 2002 Chevrolet Cavalier 2.2l 4 door sedan. Well 2 days ago the Check Engine Light came on for the very first time. It has about 54,000 miles so far on it. I read up on it in the car manuel that came with the car and I did check the gas cap on it and it was opened. So I re-tightened it and the the check engine light still came on. Well today I had my husband take it to the nearest AutoZone and they did the check engine light for free and it came up with a code of 440 I believe is what my husband had stated. Something to do with the Emmission. So if it is the emmission what can I do to fix it? I would like to see if I can do a simple way first before taking it to a automotive shop. As far as its running condition it's running fine. No problems to complain about yet...lol!!

jakegday
05-21-2007, 06:37 PM
hello, you are more then a year late, please look at dates before replying to posts....

and as for the post before that, i went to autozone just last week and they scanned my codes for free

beautiful_eyes
05-26-2007, 01:54 AM
my car is doing the same exact thing...maybe i should try a new gas cap, then go the smoke test route





quote=rogmar420]I have a 2002 Chevy Cavalier & the 'check engine' light came on. I did a search and found this forum, read the thread, and I thought I might not have heard the 'click' the night before.

The cap was covered in gas and I didn't want to touch it in the first place, and I really didn't close it all that well. I checked the gas cap, made it 'click', drove it around for a few minutes, and the light remained on.

I then disconnected the battery for 10 minutes. When I reconnected the battery and started the car, the 'check engine' light was off, a chorus of angels started singing, flowers bloomed about my feet, and a complete stranger tried to hand me a briefcase full of money!

Well, ok, the light stayed off and that was about it. But isn't that enough?[/quote]

llcam
09-12-2007, 10:04 AM
i have 2002 cavalier check engine light still on have it check they cant find anything wrong with it its been for 2 years

shakewell
09-12-2007, 06:36 PM
You need to find out what codes are coming up.

csuerman
07-14-2011, 03:18 PM
I recently had this happen to me in my 2003 Cavalier. The mechanic ran a smoke test on it and discovered a couple of hoses that needed replacing. Two days later, the light came on again. It turned out it the gas cap wasn't sealing properly.

Wish I knew before hand I could have saved myself a couple of hundred bucks for the mechanic's time...

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