Toyota - Prius :: 2009 - Check Engine Light Suddenly Came On
Aug 28, 2013
I own a 2009 Prius (4 years and 4 months old) with about 33K miles on it. Last Sunday while driving the Check Engine Light (CEL) suddenly came on. I made it home and started digging for possible causes - everything from a loose gas cap to a failure in the water pump for the inverter to a 12V battery nearing the end of its life. I've eliminated the water pump for the inverter as the source of the problem since, when I put the Prius into "Ready" mode, I can see movement in the fluid reservoir (when the gas engine is not on) indicating that the pump is working (it had also been replaced under a recall on that water pump a couple of years ago).
I'm down to a loose gas cap (which I checked and tightened) or the 12V battery as possible problems. I've tightened the gas cap but the CEL won't go off and I'm about to replace the 12V battery. Will that clear the CEL? I'm going to take it to a mechanic on Friday morning (my first opportunity - until then it's sitting in the garage) to get a code readout. Could this be something more serious? I mean the car is under 5 years old and has only 33K miles on it! What else could be causing the CEL to light up?
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2008 Prius. I just passed by 5K oil change by a 50 miles or so, so my maintenance light was on, but when I was driving it on the expressway today suddenly the red triangle light and check engine light came on, I immediately pulled over onto the shoulder and had it towed. These are the error codes that were showing up:
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Suddenly today, I get a "Check Engine" light while driving. Scangauge II says it's a P1430 error. I found two different suggestions, but where these are located on the car.
P1430-Electric Air Pump secondary Failure
P1430 -Vacuum Sensor for Adsorber and Catalyst System Circuit Malfunction
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I have a 2007 Toyota Prius with just under 30,000 miles. Yes, I don't drive all that much, which makes the Prius the perfect car. I get it serviced every 6 months by the dealer. So far, other than oil changes, the only actual maintenance has been tires, a 12 volt battery, and a $300 "inspection".
A few weeks ago the "Check Engine" light came on. I pulled the code P0301, which translated to "Misfire on cylinder 1". The car was running great at that time, and since clearing the code it has continued to run without the light coming on again. Given that my maintenance is more time-related than mileage-related, it's possible that the ignition system needs attention. However I'm reluctant to bring that up at my next maintenance appointment, because the guy writing up the service order will always answer "Yes" to every "Do I need ..." question.
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My wife's car is a 2002 Prius, 149 k miles. Lately the check engine light has been coming on. I took it to the dealership, and their assessment is that the catalytic converter needs to be replaced. They are recommending about $2,000 + of repairs. While I am contemplating the practicality of investing that much in keeping this car going I'm wondering if it harmful or dangerous to continue operating this vehicle.
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I need to get my 2002 Toyota Prius inspected. The Warning/check engine light came on so I ran a diagnostic (OBDII) on it and came up with P3006 Fuel Air Metering Auxillary Emission controls. What does this mean? Previously codes indicating cylinder misfire came up but those cleared.
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I have a 2009 Prius and the check engine light came on last week. I decided to take it to a highly recommended auto repair shop instead of the dealer. The error cord was P1121 and they replaced some kind of coolant control valve. When I went to take the car home I noticed the check engine light was still on and they said there was another similar but different coolant valve that needed to be replaced. They replaced the other part and everything seemed fine.
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2007 LS460L ... Check Engine, PCV, and VSC system light came up all of sudden. Traction control, cruise control and "Hold" system doesn't not work. I recently replaced Air filter, A/C filter and Oil change.
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Driving down the road today and all of a sudden the car loses power, starts vibrating and the Check VSC and Check Engine lights came on. I pulled off the highway and got the car stopped and engine shut off. I let it sit for about 5 minutes and started it up and all warning lights went off and I was able to drive the car home with no adverse effects. Seems to be running normal now. Searched the archives and saw numerous posts about a loose gas cap, but this was something far more serious.
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While my car was idling in a CVS parking lot, the VCS, Red Exclamation in a triangle, Yellow Exclamation in a circle and the check engine lights all suddenly turned on.
In reading the forums, it seems the two most likely issues would either be the inverter pump (which I had replaced as part of the recall, and I see the fluid moving in the reservoir), or possibly a bad 12v battery (which I had replaced last year with the forum recommended Optima Yellow Top).
I checked for error codes, and there were numerous ones there at first, but I think that might have been related to the old 12v battery dying (I never reset after that). I cleared the codes, and no new codes are generating.
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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?
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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.
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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?
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The mechanic told me the oxygen sensor needs to be replaced but it is not an essential item. Can this be bypassed in order to have the car pass. Its not a safety issue. My car is a 98 and has 147,000 miles on it. It leaks oil, power steering fluid, the heat does not always work and I am shopping for a new car and do not want to spend money on anything not needed
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1989 toyota 4runner. O2 sensor is bad and has the check engine light on. No need to spend $100+ on the sensor. Is there a way to disable it so the light goes off?
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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....
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I have a 2000 Toyota Camry that has a unique problem. The Check Engine light NEVER comes on even when first starting the car. I have access to a scanner and know that the car periodically throws a catalyst code but the light never comes on. I just assumed that the bulb was burned out.
Today while solving a non-working clock issue I had to take the instrument cluster to get to the clock. While I had it out I decided to check the Check Engine Light bulb. It looked fine so I took I replaced it with a bulb that I knew worked fine. Again, nothing. The bulb doesn't light at all. About 4 weeks ago my timing belt broke while driving (non-interference motor) and it threw a code for the camshaft position sensor but again the light never came on.
Why the light never comes on?
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I have a 2005 Toyota 4Runner. 355,000 miles. No problems with it until now. About 2 weeks ago Check Engine Light came on. I replaced spark plugs (they were due), checked coils and fuel injectors and still have Check Engine Light on with code P0301 (Cylinder #1 missfire).So compression tests were done and cylinder #1 had 120 psi and others 170. I suppose 120 isn't terribly bad but is significantly lower than 170.
Question 1: If I reset the check engine light (turn it off), do you think it will pass California smog test?
Question 2: What do I need to cure the problem? Engine rebuild? JDM? or retire the truck?
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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.
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I have a 2004 Toyota Corolla.
Check engine light was on so I took the car to Midas they pulled a code (133) and they said its Oxygen Sensor is not working. I took the car to Auto Zone for second opinion, Auto zone confirmed that Oxygen Sensor might be having problem. Then I inquire in couple of places for the price to fix O2 sensor, all most all places I got the same quote to fix it.And after a day or so check engine light went off. Check engine light was on for a day or so.
Now I am confused, is there a problem with Oxygen sensors? Should I still go ahead and fix these sensor or should I wait till Check engine light comes back again?
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The "Check Engine Light" is on. When I brought it in for the annual inspection (NY), the diagnosis was "lean fuel mixture". The fuel filter was replaced (the car has over 110,000 miles on it), and some adjustments were made in the computer, or the sensors (I don't remember which). It was found that one adjustment was effective at low speeds, and the other one was necessary for 2000 RPM. A valve cover gasket was replaced because of an oil leak, but I don't see how this could have contributed to the problem. I drove it for about 10 miles and the light went on again. What the cause might be?
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