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Check Engine Light

Parent Category: Fuel and Engines
The check engine light comes on in a car when the engine is experiencing a problem. Ask questions here about your car's check engine light.
Check distributor Check timing and timing chainCheck wires and all electrical parts pertaining ignition system
The "check engine" light is an indicator for a system that monitorsmany electronic functions in the system, also called the"malfunction indicator lamp" (MIL). It can come on for any ofhundreds of different causes from any of the systems that thecomputer monitors. Some are very important and can lead...
  == Answer ==   Could be "service engine soon" light indicating a problem with emission system - have vehicle scanned to determine problem
Trouble code P0173 means:Fuel trim malfunction (Bank 2)
ive a peugeot 206 the orange light with a k is on what does that  mean when i start my car it starts to shake then cuts out
  You may be able to reset it after you repair the problem that set the light in the first place, by disconnecting the battery for 5 minutes. That may not work on your 1996. If not, you will need an OBD scan tool to reset the light.
Take it to a repair shop or somewhere that can read the computer, a  check engine light can mean a lot of things it is very broad,  reading the computer can help you narrow down what is wrong with  it.
  This could be a safety feature to exhaust any fumes from gas or oil leaks from the engine compartment. Could be too that the A/C has been left "on" from the last time the car engine was run.
The OBDII port can always be found within a foot of the steering  column usually at the bottom or under the dash.
 == Answer ==   could be several things. 1st is the car actually overheating. If so then it could be a stuck thermostat or a bad water pump.     If it is not really overheating my bet would be a falty temp sensor. The temp sensor is what actually tells the light to turn on. 
Gas Cap is not on tight, or the seal leaks and you need to replace the cap.
This P1153 code concerns the AF sensor (sometimes called an oxygen sensor) that is screwed into the exhaust coming from bank 2, the bank of three cylinders on the LH side of the engine (side facing the radiator.). Note that when ordering this part from a dealership, have the VIN ready and if...
A flashing check engine light is an indication of a misfire. See related questions
If your check engine light is blinking , an engine cylinder misfire has been detectedThe vehicle needs to be scanned for trouble code(s) to diagnose and then repair theproblem
  The automatic gear shift mechanism is assembled from over 100 small parts almost all of which are available separately from your VW dealer. Remove the covers and look to see which parts have worn. Order the required replacement parts, then install them correctly. Note that the gear shift lever...
 == Answer ==   Check Engine Light !!!!!!    == Answer ==   I think this will be the Catalylic converter in the exhaust system
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
Answer to my own question for others looking for a conclusion. I checked underneath the passenger seat and the wiring and made sure everything was in and the drivers side also. After just making sure they where in, i turned the key and started the car, both the service light and airbag light went...
Low voltage (high vacuum) at mass air flow sensor (or MAP sensor).
Perhaps this may help you in your search for causes. A high hydrocarbon reading is usually unburnt fuel. If the CO reading and the NOx readings are below the limit then look towards an ignition problem as being the most likely culprit. As the prior answer suggested, start checking items and begin...
Answer . Maybe not. Go to Auto Zone and have them pull the error codes. Go to a transmission place not a dealer, most are ripoffs. Do some research on transmission places. Try to find a reputable shop.. it could be a solenoid that runs about $400.00 for the part but you need to have it hooked up...
  == Answer ==     I am having the same issue AFTER replacing the torque converter and switch in the transmission. My check engine light was coming on with the transaxle light and the code read to replace these items BUT the transaxle light is still coming on. I am still trying to get an...
O2 sensor out of range.
Disconnect the red battery cable. Wait a few moments and reconnect it.
%REPLIES%    == Answer ==   Hey Glenn==A lot of codes are set because of a bad ground. I would see if they came back on. GoodluckJoe   == Answer ==   Trouble Codes work off of a three step trip.The service engine lights that came on tested itself, once you tried to start your...
    == Answer ==       The Select button and the set button, hold them down together, should reset with in a couple of seconds.
The EVAP Canister System is the system that purges the gas tank of most air in it, making it a vacuum and keeping the lines fairly void of anything but gas. Unfortunately, unless your going to be able to give all the codes from your check engine light andd remove the exhaust to get to the gas tank,...
== Answer ==   Problem with the emission system   Have vehicle scanned to determine problem
Answer . \nIt is reset with a OBD2 scan tool, after the repair of the system.
  == Answer ==     If the check engine light is on, then the car is not fine. It may be seem to be running fine, but there is a problem. Damage can occur to the engine, and especially to the 02 sensor and the catalytic converter if the problem is not corrected. The light will be reset...
the check engine light comes on for many reasons here are a few egr valve, co2 sensor,engine temperature sending unit,running lean running rich gas cap is defective, timing and the list goes on and on if you are handy all these items are explained in the haynes auto books very well and it also tells...
  there are everal symbols, battery, handbrake,airbag, if its diesel you'll have a coil heating light, oil low indicator, headlights,sidelights,mainbeam
How do you turn off the check engine light on a 2001 honda accord?
  == Answer ==   Perhaps throttle plate stuck in the open positon
Take your car to a repair shop and have them diagnosis the problem. If you read and paid attention to the first sentence it will save you money. Yes, some parts houses will tell you what the code is to sell you parts but that does NOT mean that is what is needed to repair the problem. It could be as...
  == Answer ==   Not running on all cylinders?  Engine light on?   Bring to shop to have scanned
    == Answer ==       The secondary air injection pump pumps air into the exhaust to help heat the catalytic converter at cold start. This lowers the emissions at an otherwise high emission time.     A malfunction means that computer has registered either a pump failure ...
You can't. But you can ask AutoZone to do it for you for no charge.I keep reading that you cannot check DTC on a OBDII system. That is not true. There may be cars that you can't check the codes, however, I own a 2000 Dodge Intrepid and a 2005 Nissan Altima SE and I can check both of them.Intrepid -...
  you need to be running premium. i would guess that you are not. your motor is experiencing severe knock caused by the boost. this causes the pcm to freak out cuz your motor is going to blow if you keep doing this.
Trouble code P0440 means:Evaporative emission control system malfunction
I would try disconnecting the battery....that may reset the computer chip.
Best bet would go to autozone and pick up a $20 code scanner or have them run your codes, mine was doing something similar and turned out being a bad throttle position sensor    Answer does it seem the the engine is shifting too much...maybe the shock absorption is shot in the rubber of the...
  EVAP small leak/no flow condition   common when replacing fuel pump ( missed a connection)   or simple as broken gas cap   probable causes:   defective or loose fuel cap   EVAP canister or hose cracked-not connected   purge or vent solenoid defective   vacuum leak at...
It looks like a little yellow engine.
  pull the battrey cable pos lead this will reset but it will come back on again go to auto Zone they will read the codes and tell what is bad
You will have to remove and disassemble the cluster
A flashing check engine light is an indication of a misfire.
If the check engine light is flashing that means an engine cylinder misfire has beendetected
The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on,...
First you need to find out why the check engine light is blinking. Borrow, rent or buy an engine diagnostic code scanner from your local auto parts retailer. They'll often even help you figure out how to connect the scanner and what the codes mean. The flashing light is the computers way to tell you...
keep an eye on it, if your not have any other problems it will ok, just aggrevating, also undo your battery cables for a few minutes, then hook them back up and if no other problems that should reset the computer and light should go off, sometimes it takes a day or two, but shouldn't unless your...
  You probably have wires that are burning. You should have the vehicle repaired by a professional before you have a breakdown or a fire.
You need to have the codes read. You can then diagnose the codes.  The code will probably point to the cause of the stalling.
  == Answer ==   turn the key back and forth 4 times dont start just up until notch b4 turnin on
red is critical. could mean anything depends on what it looks like.
Take it to a mechanic who will use a computer to read a problem code generated by the car's computer. He will repair the problem and reset the light.Plain English problem codes are not used to encourage car owners to take their cars to the dealership for repair. However, any competent mechanic will...
If you are checking a Chrysler/Dodge 55 is "end of message". It just means that there are no more codes to show. If that is the only code you got , then there are no codes.
Some parts stores such as Autozone, Pep Boys, Advanced, etc. will read the codes for you and may even have scan tools for rent.
If yours is on, it could be many many things...but I recently had mine come on because the thermostat was out/going out of it. I took it to my local auto-zone, they will do a free scan and give you a good idea of where the problem lies. Like I said, my 2004 envoy's check engine light was on because...
Time with no problems will make the light go out or you can hit the reset button on the test unit. If you have an auto parts store nearby, they will very often do this for you.
i have replaced the plugs and wires and my service engine light comes again in 2004 land rover discovery
Answer . No, that means there is a problem with the emmissions system. Have the computer scanned for the error code. Do not continue to drive without getting this fixed. You can damage the converter or other parts.. Answer . It's probably because of the Mass Air Flow. They're all faulty on the...
Try diconnecting the battery for one minute. I have a 2005 Murano and it actually resets nicely after 15 seconds of disconnected. Just leave key on and radio, and you can tell right away.
    == Answer ==     I found this for you:     The 51 code means "Fuel too lean." As opposed to a 52, which means "Fuel too rich."     Now what does this mean? alldata.com had this to say:   Jim Grant's Tech Tips     What is Fuel Too Lean?     Q: What is...
You have it checked for codes and diagnose the cause of the code.
It means that the catalytic converter is not working properly.
You may have knocked off a wire when you reconnected the starter wire, Check the wire going to the O2 sensor. if this isn't it take it to a shop and have them scan the ecm. It could be a flewk.good luck....Michael
A malfunction that is effecting the emission control system has been detectedYou need to find out what the trouble code(s) are to help diagnose then repair theproblem
Answer . \nGoogle 'Honda "check engine"' I got it on the second link. Answer . \nhttp://www.honda-tech.com/zerothread?id=1171263
  Service Engine basically means the engine requires scheduled maintenance. Open your owner's manual and it will tell you what service. Normally it means an oil/filter change. If you are referring to the Check Engine Light, then the ECU has detected a problem with the emissions controls. Take it...
  == Answer ==   turn the key to run (not start) 2 times with in 5 seconds and watch the odometer
  == Answer ==   Certain auto parts stores such as Auto Zone and Advanced Auto Parts will read engine-check light codes as a free service. When I have used this service before, they have given me a hardcopy showing all of the error codes and their associated error messages.   == Answer ==...
It could be anyone or any combination of things, so you need to have the codes pulled up by a code reader
Your best best is to got to your local auto parts store. Auto Zone and O'Reilly both have OBDII Scanners to ID the reason the light is on, then you can clear the codes to turn the light off.
Random multiple cylinder misfire, is when the engine cylinders do not fire in the correct order, and do not do it constantly. There is no particular pattern to it. My experience with this condition is that it is usually caused by a faulty ignition coil that is beginning to burn out. It could also be...
There isn't a reset button on that vehicle.
The light is on to tell you to go get to codes scanned. (A more detailed description is available in your Owners Manual.) Many auto parts stores will scan codes for free.
If the check engine light is blinking , an engine cylinder misfire has been detected
  there could literally be thousands of causes...most auto repair places will read the code and tell you what is wrong for free...
There are pages and pages of things that can cause a check engine light. You need to have it checked with a scantool. Then the code can be diagnosed and repaired.
  == Answer ==   The fuse for the horn and the OBD2 diagnostic computer is the same n recent FORD and Mercury models. The computer controls the check engine light. So replacing horn fuse is also isturbing the OBD2 computer
  There is air escaping from the gas tank. Often a problem with the gas cap, try tightening the cap, reset the code and see if it comes back on. Essentially it is testing for cracks in the tank.
No, there is no code for a bad master cylinder nor any brake condition. Your light must be diagnosed using a scanner which will narrow down your problem.
A check engine light in any vehicle is a warning that there is an  issue with the motor. In a specific vehicle, as in a Ford Contour,  it is best to check the manual or with a mechanic to identify the  issue.
Yes , as long as your oil pressure and engine temperature are fine . The check enginelight comes on when something is effecting the emissions of the vehicle .Of course you may not be getting as good gas mileage so it's best to have it looked at
[PDF]   SUBJECT: DTC P0456 - Evaporative System Small Leak Due To Loose ...   File Format: PDF/Adobe Acrobat - Quick View Nov 14, 2007 ... This bulletin involves performing the diagnostic procedure for DTC P0456, and if necessary, the replacement of evaporative system components ...www.xkjeeps...
disconnect negative for a few hours either that or it'll turn off itself within 100 miles if the problem is fixed
  == Answer ==   The engine doesn't need to be running. Just turn on the keyswitch with the code scanner connected.
It could be a NUMBER of THINGS wrong. It means there is a problem with the emission system are Transmission. Need to have engine scaned with an OBDII engine scanner. Advance auto parts will scan it for free. You will have to repair the problem before it will go off.
Probably a senor: MAP, MAF, IAC, pr TPS
Burnt out bulb, or the problem you are having is caused by an engine component that is not being monitored by the computer and so it cannot trip the trouble light.
  == Answer ==     light means ther is a sensor gone bad what you got to do is there is an on board diegnostic on the passenger side lower floor panel there is a blue clip turn every thing off and install a jumper wire then turn key till the check engine light comes on again and count the...
  are you having a check engine light stating "engine too lean?" if so replace all o2 sensors.change spark plugs and especially air filter.rest code and see what happens.
According to the Chrysler "tech connect" tech. help website, P0073 is Ambient air temp sensor high. Likely cause is the sensor itself.
The check engine light (service engine soon) comes on and stays on when a problem is detected by the self diagnosis system of your vehicle. Generally, the problem is in the emissions or something that is affecting the effectiveness of the emissions, but other causes can trigger the light to come on,...