01 Camry Check Engine Light

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Old 31 Aug 2005, 08:38 am   #1 (permalink)
Camrygirl
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Default 01 Camry Check Engine Light

Hello...

I have an 01 Camry. The check engine light has come on. It has been on
for about 2 weeks. The car has been running great, but until today I can
feel some hesitation as I am driving down the road, like it isn't getting
enough gas, or bad gas. I am going to have it decoded today. Can by some
chance a bad fuel filter make the CEL come on? I am thinking it is the O2
sensor since that is the most common thing for the CEL to come on, and I
have noticed that my gas mileage has dropped.

Any suggestions? Thanks

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Old 01 Sep 2005, 02:26 am   #2 (permalink)
hbuck
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Default Re: 01 Camry Check Engine Light

Hi Camrygirl,
There's no way to know for sure what the problem is until you get the
codes pulled.
Post them and also 4cyl or 6 ?


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Old 01 Sep 2005, 08:41 am   #3 (permalink)
Camrygirl
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Default Re: 01 Camry Check Engine Light

Well, I got it decoded yesterday. It showed a P0440 code, which could be a
loose gas cap, which I did have a faulty gas cap in October and I bought a
new one from Toyota and if I remember correctly, a P0720 code. That is
the O2 sensor code. My car has 112,000 miles on it, so it makes sense
that the O2 went out. So, I am going to try that first. So, my next
question is do I replace the part, then clear the codes?

I have a 01 Toyota Camry LE 2.2L 4 Cylinder

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Old 01 Sep 2005, 12:05 pm   #4 (permalink)
hbuck
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Default Re: 01 Camry Check Engine Light

Haynes manual possibilities for P0440 are:
vapor pressure sensor malfunction/
fuel tank cap damaged or loose,wore out/
vacuum hose leaking,blocked,disconnected./
fuel tank damaged/
charcoal canister damaged
There is no P0720 listed, must be wrong number.
Codes that show possible problems with o2 sensor would be:
P0125,P0130,P0133,P0135,P0136,P0141,P0150,P0153,P0 155,P0171,P0172,P0174,P0175,P0420.
Some of these codes show other possibilities besides the o2 sensor for
example p0420 lists catalytic converter as another possibility.
But to answer your question, yes,clear the codes after replacing the part.
The CEL light will go out on its own but it may take a long time.And if you
didnt fix the problem it wont ever go out.
-Good Luck




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Old 01 Sep 2005, 03:43 pm   #5 (permalink)
Camrygirl
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Default Re: 01 Camry Check Engine Light

Ok....here are the codes....

P0171
P0420
P0440 (which I got this before when it was a loose gas cap)
P1130

Are you saying that it isn't the O2 sensor? Could it be something else.

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Old 01 Sep 2005, 04:10 pm   #6 (permalink)
Camrygirl
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Default Re: 01 Camry Check Engine Light

Ok....here are the codes....

P0171
P0420
P0440 (which I got this before when it was a loose gas cap)
P1130

Are you saying that it isn't the O2 sensor? Could it be something else.

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Old 01 Sep 2005, 06:35 pm   #7 (permalink)
hbuck
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Default Re: 01 Camry Check Engine Light

I'm not a Tech.I was just trying to provide you with some information to
help make your decision.Sometimes with just one or two codes showing it is
possible even for Do It Yourselfers like me to determine what the problem
it is.But with four codes showing I would let a good shop sort it out.

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Old 01 Sep 2005, 11:25 pm   #8 (permalink)
Steve H
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Default Re: 01 Camry Check Engine Light


">
> P0171 System too lean
> P0420 Catalyst System Efficiency below Threshold.
> P0440 EVAP Control System
> P1130 Air-Fuel Sensor Circuit Range/Performance




I'd have to get to a shop computer to research some, but anyway... something
is telling your car to run lean. Now there is no O2 code, so i'm not
concerned with it; the 0420 code can be a post cat o2 sensor result; but it
doesn't adjust the cars computer (code 0171) I'd ignore code 0440 for now
and worry about it when you get the other issues worked out.
Code 1130 is the one I'd look hard at, starting by inspecting and cleaning
the MAF; otherwise look into replacing the air fuel sensors (but this part
is just a guess without looking at scan tool data)

Perhaps a knowledgeable shop would be a good choice; because some of these
parts can be expensive and you don't want to throw money away.


--
Stephen W. Hansen
ASE Certified Master Automobile Technician
ASE Undercar Specialist

http://www.troublecodes.net/


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Old 02 Sep 2005, 12:53 pm   #9 (permalink)
Camrygirl
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Default Re: 01 Camry Check Engine Light

Hi Steve,

Thanks for the help. I was told that it "could" be a bad MAF sensor.
Would I just be better off going to Toyota and getting a complete
diagnostic test to see exactly what it is?

I know those parts can be expensive, and I would hate to buy the part and
it not be the problem.

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Old 03 Sep 2005, 12:06 am   #10 (permalink)
Steve H
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Default Re: 01 Camry Check Engine Light

That would be best. We just had a Nissan in our shop and the computer said
MAF sensor; all indications told me in my heart is was the MAF sensor, but
the cost of the sensor was over 400 dollars. So if I was right good; but
wrong the shop eats 400 dollars. (I was right)


--
Stephen W. Hansen
ASE Certified Master Automobile Technician
ASE Undercar Specialist

http://www.troublecodes.net/



"Camrygirl" <michellelee69@hotmail.com> wrote in message
news:42d0cd3f637a36d65c88ff665a2f8b99@localhost.ta lkaboutautos.com...
> Hi Steve,
>
> Thanks for the help. I was told that it "could" be a bad MAF sensor.
> Would I just be better off going to Toyota and getting a complete
> diagnostic test to see exactly what it is?
>
> I know those parts can be expensive, and I would hate to buy the part and
> it not be the problem.
>



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