Check engine light came on while driving

Check engine light came on while driving

Check engine light came on while driving. I got a list of problems but I'm still not sure. Couldn't be o2 sensors because it doesn't run up my gas and then when I go up a hill it doesn't affect the car so it's not the catalytic con. But I noticed something weird… When i put my leg to muffler it's not smooth how it used to be? It's like puffs in a way…. Oh and I do have to get a gasket for motor (oil) that's about it. Thank you.
My car has an automatic transmission.

Experienced mechanics share their insights in answering this question :

The Check Engine Light is an indicator that something is affecting your emissions in a negative way. This can be as simple as a loose gas cap, to a misfire and many things contribute to the overall emissions output. The Check Engine Light also indicates that a diagnostic engine code has been stored. Reading the codes will help with knowing what system is causing the fault. A certified technician, like one from YourMechanic, will be able to read the codes and perform some tests to determine the exact cause of your Check Engine Light.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

The reasons for a check engine light turning on can range from something minor like a loose gas cap to something more serious like a faulty catalytic converter. It could even be a sign of internal engine failure. Ignoring the problem can turn a potentially quick fix into a costly and time-consuming repair.

If the check engine light is flashing on your Honda, you need to pull over immediately and turn off your car, especially if accompanied by oil or temperature warning lights. A flashing check engine light spells trouble. If you continue to drive you`ll risk serious – and expensive — damage to your engine.

A steady glow typically means something less serious but a flashing check engine light indicates that your vehicle`s engine is in serious trouble and service is needed immediately. If your check engine light is flashing in your Honda Accord, we highly recommend not to drive the vehicle and schedule Honda service today.

Honda Accord Check Engine Light Flashing

Diverse natural reasons for a Check Engine Light are damaged oxygen sensor, a malfunction with the fuel injection system, dirty mass airflow sensor, faulty head gasket, faulty emissions control part, or defective spark plugs to name a few.

Can you drive a car with the engine light on? It`s okay to drive for a few miles, but be sure to schedule an inspection of the engine as soon as possible. If the check engine light comes on while you`re driving, don`t panic! Pay attention and see if the car is driving any differently than normal.

Will your check engine light turn off by itself? In most cases, successfully repairing the issue that caused your light to come on will cause the check engine light to turn off automatically—but only after 10 to 20 “cycles”.

Sometimes, the check engine light comes on to let you know that there`s a problem with the car`s internal diagnostic mechanism. That means the system could be “finding” a problem that doesn`t exist, or it could be that loose wire systems are creating a false positive in the system.

When your car`s check engine light is solid, you should be able to drive it. The only caveat is if the car feels like it isn`t running smoothly. In this situation, you should avoid driving your vehicle. If your car`s check engine light is flashing, don`t drive it.

Code P0420 indicates that the catalytic converter is not functioning efficiently, therefore increasing the output of harmful pollutants by the vehicle.

If the check engine light illuminates, it will either blink or remain constantly illuminated, depending on the problem. A blinking light, or in some cars a red light instead of a yellow or orange light, indicates a problem that needs immediate attention. Either way, you should have the vehicle checked by a mechanic.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Car started to slow down and then the check engine light, battery, and engine oil light came on. What could cause this?

ANSWER : Hi there. It is possible that the battery cable came loose or the wires to the oil pressure sensor has came loose or failed. Check the battery cables and make sure that the terminals are tight and clean. Check the wires to the oil pressure sensor and make sure that they are connected and not broken. If everything looks good, then the oil pressure sensor may have failed. Plus, check the computer for codes and see what is stored. This will lead you to the part that could have failed. I recommend replacing the oil pressure sensor then checking to see if the lights will go out. If you need further assistance troubleshooting your vehicle, then seek out a technician, such as one from Your Mechanic, that can assist you with the warning lights that came on.

Read Full Q/A … : Check engine light came on while driving

While driving on freeway truck goes into a limp mode, and the check engine light, abs light, parking break light, service brake

ANSWER : It is possible that you could be having an issue with your powertrain control module. This is somewhat of a common problem on many GM vehicles. I would recommend having your vehicle inspected by the dealership to determine if the powertrain control module is functioning properly. If not, a reflash of the powertrain control module may resolve the issue but often times it must be replaced.

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Can front wheel drive car engine power rear wheel drive

ANSWER : Anything is possible with enough engineering. The changes you are looking at would take major structural changes and would definitely not be an easy job. You could possibly consult a manufacturing engineer to get more details on how this could actually be carried out and whether it would be feasible.

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2006 Ford Mustang has check engine light on

ANSWER : There are countless potential causes for your illuminated check engine light. The mechanic manually turned off the light, but it came back on because the problem has not been fixed. The first place to start is retrieval of the stored diagnostic trouble codes (DTCs). These codes serve as a starting point for any further diagnostics a mechanic may perform. Codes will be stored anytime the check engine light is on. Since the first mechanic was unable to fix your concern, I recommend giving the professionals at YourMechanic a call. We offer expert check engine light diagnosis and repair.

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P2196 OBD-II Trouble Code. came and went in 24 hours. 4 starts.

ANSWER : If the mechanic tested the output (functioning) of the oxygen sensor, especially according to the protocol at this link and found that the sensor was non functioning at that time, what you might be experiencing is a "failing" oxygen sensor and so the latest instance of Code P2196 might be explained by that. A complexity though is Code P2196 has many causes other than a failing oxygen sensor including: a faulty fuel pressure regulator; MAF (Mass Air Flow) sensor; ECT(Engine Coolant Temperature) sensor or damaged ECT wiring; leaking or stuck open fuel injector or injectors; and spark plugs and/or coil pack. Basically, if the Code (P2196) recurs, the oxygen sensor output can be re-tested but the mechanic will hopefully be aware of all these other possible causes of that Code setting. If the Code recurs, you can request a check engine light diagnostic and a certified Mechanic, dispatched by YourMechanic right to your location, will get this resolved for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

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Check engine light refuses to go off after engine replaced

ANSWER : Hello there, you have a long series of issues going on with your 2013 Hyundai Sonata. If you keep getting a repeating oil light on than there is likely a fault in that system.

Since this fault has lasted after the engine was replaced it could be a oil pressure sensor, wiring harness fault, ECU fault, oil pump, oil strainer clogged, or low oil pressure.

To diagnose this issue properly you need a complete vehicle inspection to start from square one and identify the root cause of all this.

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p0011 code,check engine light one, changed bank 1 vvt solenoid and check engine light still on?

ANSWER : The P0011 code is typically caused by oil issues with the car. I would particularly make sure the engine oil level is not low. The VVT solenoid relies on proper oil levels to do their job. If they don’t have enough oil, they won’t work. You can have a mobile technician from YourMechanic visit your home or office to inspect the Check Engine Light for you. If you follow through with a repair with us you will be reimbursed for the cost of inspection.

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2012 equinox reduced power light engine light and traction light came on. Lost a lot of power got home and all light except engine

ANSWER : Your car has what is called a "safe mode" that will be engaged by the computer when it detects that something critical has gone wrong related to any of the major components in your engine chassis or power train. This may be related to a number of things, most of which should have been registered in the computer when the check engine light came on. I recommend having an expert from YourMechanic come to your location to inspect your check engine light and diagnose any codes registered by your vehicle’s computer.

Read Full Q/A … : Check engine light came on while driving