0
Check Engine Light
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.
7,238 Questions
Does a bad O2 sensor cause the check engine light to turn on?
Yes, a bad 02 sensor can cause the cheek engine light to turn on.
It happened to my Honda Accord 96. Autozone OBD states that I have a "Malfunction Oxygen Sensor". I disconnected the negative battery cable and the check engine light went off. Until now it did not came back. It is more than a month now. I save a lot of money.
I heard an Auto Zone commercial yesterday saying that if "your check engine light comes on in your car, then come to Auto Zone and buy a new oxygen sensor" and that would fix the problem.
I went TO 2 Auto Zones today and they both checked my check engine light. both said that my O2 sensors are lean or bad. I further discovered that just replacing the sensors which by the way for 2000 Ford Windstar LX 9 parts are about (129.00) with labor about $250.00 is not a guarantee that the check engine light will go out. However if you do go to Auto Zone be sure to ask them for the codes and what they mean. The best thing you can do is take your care to a certified garage and have them to do a computerized diagnostic, in most cases it will cost you between $70.00-100.00, I will save you a great deal of heart ache $$$ later. There are approximately 900 items that can cause your check engine light to come on. Also, someone suggested disconnecting the battery for a minimum of 6 hours, reconnecting it and driving the Van 250 miles and see if the light goes out. will let you know how that works out.
AnswerSee "Related Questions" below for more...How do you turn off the service engine soon light on a 1994 Chevy G20?
9 times out of 10 replacing the oxygen sensor will do the trick. Or, try disconnecting and reconnecting the battery.
How do you make your engine light go off?
If it's the "check engine" light you can do two things. One, take it to Auto Zone and they will clear the codes from the computer or disconnect the negative battery terminal for at least 10 seconds. Note, if you still have a problem, the light will come back on sooner or later.
Can boosting a car cause a check engine light to come on?
Yes. Just had the same situation. The other car didn't need a boost (gear shift was in D but they thought it was dead because of the indicator on the dash and I didn't check before trying to boost) and the extra power from both batteries caused my car to throw up three indicator lights -- engine, wrench and battery. I cleared them with my DEC II scanner and it doesn't appear that anything was adversely affected (DEC indicated low voltage).
What is check engine code P1414 for 2006 Dodge Durango?
P1414Secondary Air Injection System Monitor circuit High Voltage
Air pump is shot. Looks like it's time to break out the meter and a wiring diagram! good luck!
1995 Chevrolet C1500 service engine soon light?
There are pages of things that can turn the light on. You need to have it checked for codes.
See related questions below.
Why does your suzuki Verona 2004 check engine light keep flashing?
A flashing check engine light is an indication of a misfire.
If a check engine light is on what does that mean?
The check engine light is an immediate signal to pull into a garage and get a quick diagnostic check. It could be a variety of problems with the engine. Usually there is a separate oil light or a wrench icon on newer vehicles to indicate an oil change is required.
no oil
i have the same problem with a 1993 acura vigor
I was personally able to solve a P302, misfire in 2nd cylinder, code by replacing the spark plugs and wires. Worked fine after that. It's generally a very simple ignition problem.
I found on line that the p300 coad is a random missfire in all cylinders and that the last number in a p300 code is the cylinder that is misfiring. Your p302 & p303 would be #2&3 cylinders.
injectors are often the cause of misfire codes on this year and model.
The first thing to try would be new spark plugs plugs and plug wires. This fixes misfires the majority of the time. If that doesn't help check the rotor and fuel injectors.
Either a bad coil or bad fuel injectors. try switching coils with other cylinder and see if code changes. if yes, you got a bad coil, if not, you must change all 4 injectors, cause they will all go bad eventually. I've seen it. I was a Toyota technician.
I have a 2000 Corolla with 140,000 miles that had P0300 and P0302 codes. I fixed it by replacing the original dirty fuel injectors with clean remanufactured injectors. Total cost for swapping injectors was $130. It is easy to do it yourself and the car now runs like it has a new engine.
Easy fix - I can also be water in the gasoline. This is caused by a leak in the underground storage tanks. - If your car was running perfect and you just filled-up and then it starts to run horrible and you get codes P0300 - P0301 - P0302 - P0303 - P0304 this is all cylinders miss-firing. The probability of all injectors getting dirty or all spark plugs going bad at one time is highly unlikely. You should suspect water contamination.
I made a YouTube video on this on February the 24th 2011 - Search YouTube for "water in fuel Toyota obd"
Where or how do you reset the check engine light on a 1993 Geo Tracker?
Underneath the dash by the steering wheel is a small switch. move it up and back down. If this does not work remove negative battery cable and than reatach it.
AnswerThe "Check engine" switch is easier to reach if you remove the small panel at the bottom of the dash under the steering wheel. It's a small plastic switch with a metal face. Switch it to the opposite of it's current position and leave it there. I tried removing the negative terminal several times for varying lengths of time and it never turned off the light, although I have read that it worked for some people. Answeron 91-96 trackers, the switch is located under the dash, next to the speaker, drivers side. its actually mounted to the frame. move the switch button to the opposite direction that it currently is in, and the check engine light will go out. Remember that around 50,000 more miles, it will come on again, and you will have to do the same thing, just move the switch opposite the way you did last time. im not sure if the check engine will flash if there is an actuall problem, but it comes/ stays on after so many miles as a reminder to check certain things such as oxygen sensor, timing belt, which is probally the main thing that needs to be checked/replaced, because the will break, and if you lucky enough that it did not damage the motor, you will still be stuck until its fixed(no fire)If the "check engine" light is on, the computer has stored a diagnostic code number. You can read that code number by using a code scanner. All of the information is available for the computer to tell you exactly what's wrong. You can borrow, rent or buy a code scanner at most auto parts retailers.
Why did the ets and check engine light came on together and the back of car jerked in 1996 cavalier?
ets and check engine light on in 98 Chevy cavalier
Can i erase codes with obd II scanner and pass smog check?
Short answer: No. Of course, I don't know what state you're in, what the emissions requirements are, etc. Some engine faults that show up as a "Check Engine" light don't necessarily cause your car to fail the test (depending on your state), so clearing the light might not be necessary. Clearing the DTCs (Diagnostic Test Codes) and turning off the Check Engine light sets a code in the car's computer. Subsequently, any OBDII reader can detect this. The car has to be driven for a certain amount of time in a range of conditions (depends on make/model) to reset the computer "Ready" signal. Unless their OBDII reader detects this "Ready" signal, the smog check guys will fail you. In general.
How does one check engine light codes?
To check engine light codes one would have to bring your vehicle to a mechanic who can use a computer to check the computer chip that regulates this function.
How do you pull trouble codes from a 1993 Toyota corolla?
find the "diagnosis" connection box under the hood left side of engine. open; attach jumper wire to "e1" + "te1" & count flashes of check eng light to obtain codes.
Normally not, depending on your municipality. Closet lights must be enclosed/recessed.
Yes, if it is a toilet with WC and mandatory wash-hand-basin. It must be an approved splashproof type of light fitting and has to be controlled by a switch that is either outside the closet or is a pull-switch in the ceiling. Also you will have to fit an approved type of extractor fan, usually controlled by the light switch. Both light and fan must be tested by a licensed electrician to conform to current National wiring regulations otherwise the local Building Inspector will not issue a "Satisfactory Work Completion" certificate for your basement. Always be sure to switch off the breakers at the main panel before you attempt to do any work on any mains power circuit.
check to make sure all of the fuel injectors are plugged in completely, i have a 2001 sable and it had a rough idle after i had the fuel pump replaced, i had the check engine light checked at "auto zone" parts store, they check it for free. the code showed number six cylinder problem, changed the spark plugs and number six plug wire no change in rough idle. i read up on the internet and one person had a problem with a plugged fuel injector, it got me thinking after they said number six injector is easy to get to, i checked it and it was not plugged in all the way. plugged it in and all good now. i took my 2001 mercury sable up to the garage that put the fuel pump in, hads them rest the error code, it has not come back on
check the codes to determine why it is lighting up. Then fix the problem, reset the code and the light should go off. A "check engine" light comes on when the computer has detected a "fault". That's typically caused by a problem with one or more sensors. Use a code scanner to read the fault code, fix the problem and the light will go out.
How do i reset my service engine light in my armada?
There are pages and pages and items that can cause a check engine light. You need to have it checked for codes with a scan tool. After repair light can be shut off with scan tool.
Fuel burning rich check engine light on?
When the check engine light is on the computer has information that you should know. Connect a code scanner to find out why and most likely it will tell you what is causing the rich burn condition.
Does a 1991 Nissan Pathfinder have a check Engine Light?
Yes, may read service engine soon, check engine, .....
How do you reset the check engine light on a 2001 Toyota Avalon?
First, if it is something like a loose gas cap, just tighten it and it will reset itself in the next 100 miles or so. If it is something else, like a leaky gas cap it will never reset. But to reset the OnBoardDiagnostic (OBD)Computer... Go to eBay and search "obdII" and buy one, they run about $50.00 including shipping. There are two types, ISO for Chrysler and some Japanese, and the other one for all the others like Ford and GM. There are several that are both, that is the kind you want. Be sure to email the eBay seller and ask if it is used with your year and model. (1996 was a changeover year for OBDII technology, so this advice may not apply to everybody--but the dealer service guy can tell you over the phone--ask him if it is OBDII compliant.) When you get it, you just plug it in and let it cycle 4 or 5 times and it resets everything. You then have to drive your car for 50 to 100 miles for the onboard computer to test everything, and in the meantime your car will fail smog checks because it has no history in the computer and the smog test procedure demands a history even if there is no pollution. Cut and Paste http://search.ebay.com/OBDII for a list of them for sale on eBay. Most units come with a list of generic fault codes so you can tell what the problem is, this could be very helpful.
