Toyota - Corolla :: 2004 - Check Engine Light On / Oxygen Sensor Faulty
I have a 2004 Corolla with a Check Engine light on. The Toyota dealer diagnosed this as: "Oxygen Sensor Bank 1 Sensor 1 - slow to respond".
The diagnostic code is PO133. Elsewhere, I find that this code indicates:
The oxygen sensor is faulty.
The wiring to the sensor is broken / frayed.
There is an exhaust leak
Haven't noticed exhaust leakage, and I doubt the wiring is faulty.
1) Where is sensor 1?
2) Do I really need a new sensor, or can I clean the old one?
Toyota - Corolla :: Getting Check Engine Light?
This is a California car that won't pass smog tests with a lit check engine light. I don't know the specific code, but the description is that the torque converter is staying in the "off" position. Apparently the lock up torque converter is part of the emissions system in that if the torque converter does not lock up then the rpm's are higher and that produces more pollutants.
1st step was to flush out the transmission and the flush made sure all the fluid in the torque converter was removed and replaced. After that was done the trans fluid has stayed nice and clean and pink for about 400 miles. The CEL was turned off after this service but came back on in a few days at about 200 miles. Next, the solenoid that activates the torque converter was replaced. The CEL was turned off again, an this time the CEL came back on after a hour of driving on local errands.
Me and my generally good mechanic are hung up now. We were betting the solenoid change out would solve the problem. It seems that the torque converter is in fact operating properly. The tranny shifts smoothly and the rpm's drop at the proper times indicating the torque converter is locking up.
Toyota - Corolla :: Check Engine Light Came On A Day After Getting Gas
At a service station in NJ, my gas cap flew into the wind and the attendant replaced it. My check engine light came on a day after getting gas (not in NJ) so I took it in to my garage. Ends up that the (new) gas cap has a crack and a new one is getting ordered. Now, whenever I am filling up the gas tank, it keeps shutting itself off (very frequently . . . like every 1/2 gallon or so). This happened when the check engine light was on and after it was initially turned off by the mechanic. I asked a mechanic at the garage because it keeps happening and I can't fill the car fully and he said it happens with some cars and you have to hold it a certain way or something. This can't be fixed and I'll just have to get used to it until I get a new car. My question -- how could this have just started happening? Its a 2002 Corolla and I've had it for years without problems. Is it possible that when I get a new gas cap and the computer gets re-started, it will fix itself?
View 6 RepliesToyota - Corolla :: 1996 - Check Engine Light Goes On
I have a Toyota Corolla 96. The check light is on. I took it to AutoZone and the guy told me everything is Ok. I looked the oil level this morning and it was low. The temperature sensor is normal and the car runs fine. My car experience is almost zero....
View 13 RepliesToyota - Corolla :: Cannot Get Check Engine Light To Stay Off
My girlfriend's 2001 Toyota Corolla has a recurrent Check Engine light problem. It has 144,000 miles on it. For the last few years, we have been unable to keep the light turned off. We have replaced the oxygen sensors and cleaned the MAF sensor. Our mechanic can't find the problem.
View 3 RepliesToyota - Corolla :: Check Engine Light Comes On And Goes Off (PO125 And PO441)
For a few months, I have been getting check engine lights on my Toyota Corolla 2002. The check engine light often goes away by itself.
I took my car to a mechanic with a decent reputation after a couple weeks of the problem. He thought he fixed it and gave the car back to me. The check engine light kept coming back on, and I kept going back. The mechanic topped off the coolant, replaced certain hoses, host clamps, sensors and other parts (like the solenoid canister). After the fifth trip back (and eight weeks of time), he refunded my money.
The check engine light comes on and goes off. Right now with no check engine light on, I get codes P0125 and PO441 PD.
What will happen if I keep ignoring these check engine lights or the codes that persist when the check engine light is not on? I was thinking of going to another mechanic. I think I want to wait for a few more weeks to see if I notice a pattern. I do not drive that many miles each day (much less than average).
Toyota - Corolla :: 2002 - Flashing Check Engine Light?
I have a 2002 Toyota Corolla CE with about 115,000 miles.While I was traveling on the highway my car started shaking, losing power, and the check engine light started flashing. I drove a mile or two to a rest area because I didn't want to pull over on the highway. I had it towed home. It starts and idles, but I'm afraid to get it out on the road.
View 15 RepliesToyota - Corolla :: 2002 - Check Engine Light Came On After Oil Change
Had the oil changed today; before doing so, I saw that the check engine light had come on. Have been told by 3 professional car maintenance people that there is no connection between needing oil / oil change and check engine, that it would have been the check maintenance light.
Will take it in for diagnostic test by dealer. Also, was told by the oil change guy that he heard pinging which could mean that the car needs to have the valves adjusted, and that the check engine light is due to needing something or other with the gas tank filter which could have a leak/crack, etc.
Toyota - Corolla :: 2006 - Check Engine Light Comes On When Cold?
The check-engine light on my 2006 Toyota Corolla came on a couple of weeks ago after I started the car on a 7-degree F morning. Code was P-0171. Mechanic cleaned the MAF and the light went off. Light stayed off 'til I started the car on another 7-degree F morning. Mechanic said that the MAF didn't look dirty, and the readings didn't change after cleaning. No vacuum leaks. O2 sensors responding normally. What's going on? I travel a lot in this car, so I don't want to damage the car by ignoring the check-engine light.
View 1 RepliesToyota - Corolla :: 1998 - Check Engine Light On Then Off After Code P0441
About two weeks ago, while driving on a hot, humid summer night, the check engine light in my 1998 Toyota Corolla came on. The following day, I took it into my mechanic, who plugged it in and came up with the code P0441 (Purge flow fault). He told me it was likely related to the fuel vapor canister, though I see this can also have to do with vacuum lines for the purge valve and canister or a bad purge valve itself. My gas cap was, and had been, tight, so it wasn't something as simple as that.
Reluctant to deal with this immediately, I went back to driving it, and lo and behold - the light went off after several days! Unfortunately, the light came BACK ON after several more. And most recently (a few days after coming on again), the light has now gone off!
Both times the light has gone off, the weather has been rather wet, but otherwise, there doesn't seem to be a clear pattern. What this on again off again pattern might say about the problem?
Toyota - Corolla :: Check Engine Light Stays On - Charcoal Canister?
1998 Corolla LD ... Diagnostic tests show that my check engine light stays on due to a charcoal canister. Is this an expensive repair?
View 7 RepliesToyota - Corolla :: 2008 - Check Engine Light On / Bad Gas Or Vacuum Leak
I have a check engine light on the car and in the past it has been bad gas or a vacuum leak. Dealer says on toyota that is not possible.
View 3 RepliesToyota - Corolla :: Check Engine Light On / Small Evap Leak
I have a 2004 Toyota Corolla- the CEL has been on for months- the code is for small evap leakI have tried cleaning rust from filler neck at gas cap- no change. I have had a smoke test done with no leak found.
View 5 RepliesToyota - Corolla :: Chugging Like A Motorcycle And Check Engine Light Began To Flash
My 1998 Toyota Corolla has 180 K miles. Two days ago I was putting the pedal down to get to work on time and it bucked, began chugging like a motorcycle and the check engine light (which was already on because of an emissions issue) began to flash. A mechanic looked at it and saw that cylinder 3 wasn't sparking. He changed the plugs and wires but the engine was still chugging, especially when idling. The mechanic decided it was a stuck or burnt valve because he said he could hear/feel a lack of compression in the cylinder. I'm looking for a second opinion on the issue, and a first opinion on the mechanic!
View 5 RepliesToyota - Corolla :: 1999 - Check Engine Light Came On Flashing / Cylinder 3 Misfire
I have a 1999 Toyota Corolla. 4 cylinders.
I was on the road about 2 hours from home when my check engine light came on flashing. It stopped flashing so I kept driving. Three more hours of driving at highway speeds and it only came back on once. I then took it into autozone and the code reader told me I had a Cylinder 3 Misfire. The guy told me to change my spark plugs and I would be fine. It was time for a spark plug change anyhow so I drove home and did it. After I changed the spark plugs the car did not start at all. It would cough and sputter and try to start but not actually start. Changed the spark plug wires and then the car stopped even coughing and sputtering. It just didn't start.
I then noticed that my fuel line that feeds directly into the engine was rotten right next to the engine and if I pushed it in I could get the car to try to start. (Try and fail, but at least try.) The fuel line is a molded piece of rubber that flares at each end. It was one of the flares that was rotten and didn't seem to be sealing anymore. The hose is 7 mm inner diameter in the middle and about half an inch on the ends. I took some 3/8 in fuel line and used it to cover over one of the flares. The car tries to start now but wont. 3 of the four cylinders crank. I don't understand how I could break my car on such a simple repair job.
Toyota - Corolla :: 2000 - Check Engine Light Reading PO171 / PO172 And PO420
My Toyota Corolla 2000, 123,000 miles, Mass license plate, still getting 34 miles per gallon, has had check engine light on and off for a year.Failed inspection this June.
First garage in Somerville, without doing more than getting the three readings above, said catalytic converter was needed $350 plus labor.I was unable to do the work then and returned to NYC and job. Took to another mechanic recently to get fixed (as I wasn't returning to Mass for a while)and got only PO 171. I mentioned the other readings; they kind of scoffed it off.Trying to save me money (I guess), they cleaned the MAF filter and fuel ejectors for $200. Looked like it was fixed. A week later check engine light came on again and when I brought in found the PO 420 reading. They did not tell me if other computer read-outs were coming up as well.
Now they want to leave the oxygen sensor in front but change the one behind. Put in a newcatalytic converter $539 {they had quoted me $238 but it wasn't an OEM one I guess and they said they wouldn't warranty anything but this expensive one), charge me$137 for the oxygen sensor190 laborplus taxfor a total of a whooping $946!
I am afraid they will do this very expensive job and the check engine light will come on and htey will say o its something else.how can i be sure? also I was reading for a catalytic converter to go bad, something has caused it...what would that be? how to find out. Do they need to do the diagnosis with gas analyzer etc?
Why I spend a huge amount for an old car that is running well, not losing gas mileage, but perhaps is a bit slower on power.
Toyota - Corolla :: 2010 Toyota - Engine Light On And VSC Off Light Flashing
I own a 2010 Toyota Corolla S the 1.8L 2ZR-FE engine. Today after work I started the car in a sheltered car garage and as soon as I started the car the after the initial start up sequence the check engine light stayed on and the traction control light stayed on and right next to it on the left side the "VSC Off" light kept blinking and flashing. I turned off the car and started it several times to see if that did anything and to no avail nothing happened.
While I was driving those lights stayed on and the VSC off light kept on blinking.
I also checked the brakes and the brake fluid and they all seem to be fine, I even checked the fuel door as well.
I am not sure what is wrong. I was looking at some of the complaint sites and most people say it happens when you drive through a deep puddle or if it is cold and wet outside. But that didn't make sense because I drove in the snow and those lights never turned on. The only time I used the ETS button is during the snow storms and I drive at low speeds.
I need to know why this VSC off light is blinking? Is it a bad sensor or is the ABS/ETS brake system broken or is it an ECU issue or is it because of an alignment. Since I was told to get an alignment soon.
See also: 2010 Toyota Corolla Question: Check engine light on and "VSC off" light blinking with the ETS light on.
Toyota - Corolla :: 2003 - Check Engine Code P0420 - Change The Converter
I have a 2003 Toyota Corolla, mileage app. 106,000. Check engine light first came on when driving to destination 40+ miles away (most of my driving is shorter, around-town trips). My mechanic said code is P0420 and so they reset it and said if it comes on again that I need a new cat converter. It did not come on until about 6 weeks later when I was on a longer trip again (had driven about 40-50 miles). Can you tell me if the P0420 code absolutely means that a new cat. conv. is needed or if it could possibly be a sensor or something else hopefully less costly than a new cc?
View 3 RepliesToyota - Corolla :: 2009 - Check Engine And VSC Off Lights On / Gasket Starting To Leak
I have a 2009 Corolla with 48,000 miles. Yesterday night, the check engine and vsc off lights came on. By the way, a gasket is starting to leak (probably unrelated to the lights).
How urgent are the lights? Can I wait to get the car into an independent dealer next Tuesday?