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Edward
Edward, ASE Certified Technician
Category: Toyota
Satisfied Customers: 3136
Experience:  I have over 20 years experience in the automotive service industry.
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The check engine light stays on, Stays on, 2000 celica gt,

Customer Question

The check engine light stays on
JA: Does the light stay on, or does it blink?
Customer: Stays on
JA: What is the model/year of your Toyota?
Customer: 2000 celica gt
JA: Are you fixing your Celica yourself? What have you tried so far?
Customer: No, i took it to get a safety inspection and emissions test and they won't let it pass because the check engine light is on
JA: Anything else you want the mechanic to know before I connect you?
Customer: It went back on after it was reset almost 2 years ago is it on ever since seems that there's nothing else really wrong with the car but the engine light is always been a problem
Submitted: 8 months ago.
Category: Toyota
Expert:  Edward replied 8 months ago.

Hello, and thanks for your question. My name is ***** ***** I will do all I can to help.

Expert:  Edward replied 8 months ago.

Do you happen to know what code or codes are stored in the ECM by chance?

Customer: replied 8 months ago.
What is the ECM??? I do not know much about cars-it is my son's car
Customer: replied 8 months ago.
No I don't want to pay $26 more
Expert:  Edward replied 8 months ago.

I follow you, The ECM is the Engine Control Module, or the Engine Computer. The check engine light can come on for literally 100's of reasons. Common thing to look at, is the gas cap O ring, if the gas cap O ring is damaged, or has cracks in it or it is missing, It will set the check engine light off as it has to be a sealed system. So you want to check that, Also, look at the filler neck and see if there are any big dents and dings where the O ring is supposed to seal.

Expert:  Edward replied 8 months ago.

Do you have a local auto parts store in your area such as an Advance Auto Zone or Oreilly's?

Customer: replied 8 months ago.
we live in St. Louis
Customer: replied 8 months ago.
He did tell me that the brakes make a noise when they get wet --Is this dangerous???
Expert:  Edward replied 8 months ago.

Alright, If you can pull into one of those, they will scan the vehicle and tell you what code is stored. Is the vehicle still running fine? or does it run poorly?

Customer: replied 8 months ago.
The the place I went to today so that it would take $900 for the work to fix it
Customer: replied 8 months ago.
He barely drives it- he is in college in town, and he may put on 3,000 miles a year- if that!
Expert:  Edward replied 8 months ago.

I follow you, did they say what was wrong with it? and what parts it would need to fix it by chance?

Customer: replied 8 months ago.
Oh the guy said it needed a tune-up some new spark plugs he did a diagnostic test on it but he doesn't know really what that shows and they just kind of mumbled on the mount basically he keeps trying to come up with a way to get the money out of us
Customer: replied 8 months ago.
The car he said was only worth $800- $1300, for a trade in-- He said he would do something to reset it, but we we have to drive it's for 120 miles to see if the light come back on-
Customer: replied 8 months ago.
Or else he would not pass it-
Expert:  Edward replied 8 months ago.

I follow you, 900$ for a tune up is a lot. You can get 4 spark plugs for that engine for about 20$ and put them in yourself if you have a 5/8 spark plug socket. I can't be sure what all else he was considering for the 900$ but it sounds like you should definitely get another estimate on that. You can try this to get it to pass, disconnect the positive and negative battery cables for about 30 minutes, then hook them back up to the battery and see if the check engine light is out. It may not be if it is a hard fault. But it may work long enough for you to get it to the inspection station .

Expert:  Edward replied 8 months ago.

If you can drive the vehicle 15 or 20 minutes without the light returning after the battery cable has been taken off, then it should pass emissions inspection.

Customer: replied 8 months ago.
It would take him 4 weeks to drive that far. Oh just read your text, No it wasnt 900 for the tuneup, that was like $387, but it was another $549 for the other part he thought it needed .
Expert:  Edward replied 8 months ago.

If it is misfiring however, You would have to tune it up with new plugs, for it to pass most likely. Those spark plugs are easy to get to as they are right on top of the engine underneath the coil packs which sit just above the spark plug.

Expert:  Edward replied 8 months ago.

Do you know what he called this 549$ part that is in question?

Customer: replied 8 months ago.
I will get the estimate back tomorrow-it was due in the end of December-- for new tags. So my 14 day grace period is almost over, so
Customer: replied 8 months ago.
I was just curious--is the fact that the brakes make a noise when its wet, is that something to be concerned about???
Customer: replied 8 months ago.
Thank you Eddie, for your help & answers! Please direct the last question concerning the brakes, thank you!!
Expert:  Edward replied 8 months ago.

I follow you, It really does depend on what code is stored and what parts it needs to pass inspection.

The brake noise could be the pads, But if it's only on wet surfaces, I wouldn't worry about it too much.

Expert:  Edward replied 8 months ago.

Humidity can make brakes squeal or howl more so than when they are dry. It is a good possibility that if he doesn't hear it when it's dry, then it's just the moisture that gets on the pads and makes them a bit more noisey.

Expert:  Edward replied 8 months ago.

Absolutely, What other questions do you have, and just fyi, I would really get another opinion then this mechanic that said it needed 900$ worth of work to pass inspection.

Expert:  Edward replied 8 months ago.

Please let me know if you have any further questions. Thank you!

Expert:  Edward replied 8 months ago.

If you can look at the brake pads through the wheels and there is plenty of pad material left where it hits the brake rotor, then I wouldn't worry about it, but if the pads are getting close to the rotor, (less than 4 millimeters of pad left) then I would go ahead and replace the pads that are worn.

Customer: replied 8 months ago.
Thank you so much- yes tomorrow I might touch base with you!!!
Expert:  Edward replied 8 months ago.

Alright, sounds good.

Expert:  Edward replied 8 months ago.

Were you able to get the codes read? if so, let me know what they are and I can help some more. Thanks.