I have a 2006 Cobal Sedan. The check engine light is on and it says in the manual that this is due to an emissions problem. The Diagnostics thing my dad hooked up (OCB?) wouldn't link up. I've checked my gas cap and i put gas in my car and there's no water in my tank.. I'm not sure why this light is on.. Help?
There are many many problems that can cause your check engine lite to come on. Some of those problems will not let the lite go out until it is cleared with a handheld computer. (Even if the condition that caused the lite to come in, has cleared) But as far as the 2 comments go, a fuel injector cleaning would be a good invsement here. It is a good possibility that this is your problem and if it isn't, it is still very good for your engine performance and fuel consumption so wouldn't be a bad investment. If your vehicle is still under warrenty I would also talk to dealer about reading computer. Even if the check engine lite is not on, some codes will store in the computer that it came in and cleared so the dealer would be able to tell you what code came in to cause the lite to be on. It would at least be a starting point to look at for troubleshooting.
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The check engine light issue could be a faulty dash bulb or consul. It looks like you could do worse than get your car checked out on a diagnostic consul.
Failing that, emissions failure is usually a fault of the engine not running at optimum. Is the air filter clean, air temperature sensors clean. Finally take it out for a good run to burn of any residues before checking emissions.
Yes it could trigger a random engine misfire code due to the pump drawing air from the low fuel level. Have the system tested to confirm this, the code will be P0300. Autozone and other discount parts stores will do the test for free, just tell them your check engine light is on and you would like a test done to see what the code is.
Check engine light can be due to any problem related to engine. It may be a false trigger due to sensor problem but its always advised not to drive the car with check engine light and contact the service center immediately.
It means your vehicle's computer has determined that a component or system in your emission control system is not working properly.
When the light comes on, one or more diagnostic trouble codes (DTC) are stored in the engine control module. These DTCs remain even if the light goes out. To address a Check Engine Light problem, the DTCs are retrieved and the appropriate troubleshooting information is followed in order to determine the problem.
Every vehicle manufactured in the U.S. has to first pass an Environmental Protection Agency (EPA) test called the Federal Test Procedure. This sets the acceptable limits of wear and/or failure for the emission control system-i.e., what conditions will ultimately cause a Check Engine Light to illuminate. These standards are closely regulated. If the emission control system is faulty and the vehicle is polluting the air, the Check Engine Light illuminates to alert the driver of this condition. (Note: A vehicle in this condition would fail an emissions inspection or smog check.)
Don't confuse the Check Engine Light with the maintenance or service light. These lights illuminate when a routine service is due. They are usually triggered by mileage, gallons of gasoline consumed, or some other type of vehicle-use measurement.
Hi, And yes it is. When the check engine light comes on, normally it indicates a problem in the emissions system of you're auto. Its a good idea to check fluid level to make sure they are where they are supposed to be if it does come on. What you can do though is drop by your local Auto-Zone parts store and for no charge they will hook up there OBD-2 meter to you're computer which is located just left of your steering wheel, below your dash. They just plug it in. It will read out a code that tells you what is going on. They can then erase it and it may never come on again.This is you're best bet. My light is on now due to an emissions problem, and will go off by itself for months before coming on again. I can't find anything wrong with it. Try this and keep me posted. Sincerely, Shastalaker7
My '06 Corolla's CHECK ENGINE light came on the other day and then went out after about a half hour. It was back on this morning and stayed on, and I noticed that the automatic transmission was shifting a bit more roughly than it ever had before. Took the car to a Toyota dealership immediately. The guy told me that Toyota has had an ongoing problem with the CHECK ENGINE light coming on due to a faulty CPU (car's computer "brain"). This has been affecting models from '05, '06, and '07 according to him. He said Toyota had extended the warranty for this particular part (i.e. the CPU) due to it being faulty. The warranty expires once you reach 80,000 miles, and my car has 87,000 miles on it (yes, I do drive that much for my job!). But the guy at the dealership was kind enough to put in a new CPU for free because I have been a good, loyal customer there. The CHECK ENGINE light is now off and it should stay that way.
That is the check engine light, it is either a fault in the engine oil or cooling, or the emission system, consult the owners manual, it explains these indicators, in any event don't drive the car until you are sure there is not a fault with the engine, if it is just the emission fault light then you can drive it for a while.