Check Engine Light

in pass.side under dash.blue conecter with 2 wires.use another wire to conect the two.watch light on dash it will flash the codes

HJave vehicle scanned to determine the problem

try cleaning the air filter and the fuel injection system

I assume you're getting a check engine light. Hook up an OB2 code reader, google the code with the 2005 Hyundai Sonata, and get an explanation of the code. In general, 3 things make your vehicle go down the road: FUEL, COMPRESSION, & SPARK. Everything falls under 1 of these 3. It sound like you could have a bad fuel injector or a bad spark plug or faulty coil in which a code reader will detect right away. If you live near an auto zone most will check it for you for free and research the code for you. A good OB2 code reader is around $40.00, and there are better ones out there for a little more than that. Hope this helps, Joe

Turn ignition key to on position do not start engine.

Ground the diagnostic test connector. It is a bright green, single terminal connector located in the engine compartment near the drivers side upper strut mount between the brake master cylinder and the fender. There is a yellow two cavity connector nearby.

The check engine light will flash the trouble codes in the typical way. You count the short flashes for the ones digit, count the long flashes (if there are any) for the tens digit.

Turn key off.

To reset trouble codes disconnect negative battery for at least 30 seconds.

Change the speedo cable!

I just read something recently when researching replacing my O2 sensor. It said after you change it out you need to drive through the various stages of normal driving. Highway speed, more aggressive than usual acceleration, regular casual driving, in town stop and go etc. It's something about retraining the computer in the car to learn the new specifics of the sensor. Hope it helps and if this is right someone else please chime in with more info or an affirmative.

The only way to reset the service engine light on a Nissan without going to a mechanic is to remove the battery cables and touch them together. This will reset the system but it will not turn it off forever; it will come back on until you fix the problem.

If your check engine light is flashing that means an engine cylinder misfire

has been detected

U1411-IMPLAUSIBLE FUEL VOLUME SIGNAL RECEIVED

The fuel volume message the PCM is receiving from the BCM over the communication wires is implausible.

Will my car pass inspection with the tire light on

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, too. To determine the cause, the vehicle will need to be taken to a parts store or a shop that has an OBD2 scanner, or for 1995 and earlier models, an OBD1 scanner, While a scanner will not give you the magic answer, it will give you a code that narrows down the problem area.

No. Polydactyly is purely an autosomal dominant genetic disorder and cannot be caused by any environmental stress.

You need to have it checked for trouble codes. You can then diagnose the cause.

Trouble code P0352 means: Ignition coil B primary or secondary circuit malfunction

Step one is to have the system checked with a scan tool.

Step one is to have the system checked with a scan tool.

Yes, it is possible.

A scan tool is required to clear the check engine light. If the failure is not repaired, the light will return.

If the check engine light is on, there's something wrong with the engine. Or, the computer is bad. One or the other. They don't set a light for no reason.

The check engine light is on because the ECU has detected a problem with the emissions system. If you reset the light without repairing the problem it will just come back on. Have the ECU scanned with an OBD2 scan tool which will tell you the code that has been set. This code will lead you in the direction of the problem. Once you repair the problem you can reset the light with the same OBD2 scan tool.

you need to check your lights to make sure that the light is not going out!!!

A flashing CEL typicly means that there is a misfire.

use a code reader to check the problem and it will reset the light, but if you do not fix the problem the light will continue to come back on.

The Check Engine and TRAC OFF lights are illuminated together indicating an engine-related malfunction. The TRAC system is most likely OK, but disabled because it cannot function correctly if there is a problem with a sensor or engine related system.

The car is safe to operate while these lights are illuminated, however you will have no traction control until the problem is resolved, and the system reset. Your ABS will still function normally unless that light is illuminated too. You may notice an increase in fuel consumption.

The fault codes that caused these lights to illuminate are stored in each respective computer's volatile memory. On a 1992 LS400, the codes can be retrieved by shorting two terminals on the diagnostic connector below the driver side dash panel. They will be displayed by a series of flashes by their respective light.

See this page for more information on retreiving the fault codes and resetting them.

http://www.lexls.com/tutorials/intro/codereading.html

No, if it stays on all the time the engine computer has detected a malfunction and set a code. You need to have it checked for codes.

Have the problem that caused the check engine light to come on repaired. They will reset the light with an OBD2 scan tool. The light will just come back on if the problem is not repaired.

Repair the problem and it will typically reset itself after 3 starting cycles.