Some of the auto parts retailers around the country will let you borrow a code scanner in the hopes that you will buy necessary parts from them. You can't really test/reset the OBD system without the code scanner. The " check engine light" is by far one of the most misunderstood technological advances It is a warning light that is illuminated when there is a problem affecting the EMISSIONS of the vehicle.. Don't let it bother you as it is a good thing once you understand it. One point that was brought up a recent meeting of technicians was that the amount of hydrocarbons is greater when the gas cap is left off than when the engine is running. Hydrocarbons are part of pollution emitted as gasoline evaporates. Going a step farther, one facet of the emission system is the "Evaporative" portion. This is when the fumes from the gasoline are leaking from the system into the outside air. This is one part of the emission system that can trigger a check engine light. I would say a small percentage of the vehicles that have a check engine light are the result of a loose or inadequate gas cap. But understand that many scenarios are possible with the "check engine light" The vehicle's powertrain computer (note that some vehicles have multiple computers aside from the powertain computer) will run a series of self-tests. They will only run under certain criteria. And they are different from manufacturer to manufacturer. Some self-tests or
It means you need to go to Autozone or Shucks/Kraagen and have them read the codes with the diagnostic code reader which they will usually do free of charge. Something in or on the engine is malfunctioning and needs repair/replacement. The diagnostic code will tell you where to look for the problem. Oxygen sensor is an example of typical problem discovered but all engine sensors are monitored.
Take it to autozone they will do a free diagnostic test and tell you what is wrong with it....
have an engine diagnostic check at an auto shop to find out what the problem may be.
When the light comes on it's telling you to read the engine diagnostic codes.
The OBD-1 diagnostic connector is located on the back of the block beside the starter. A series of jumper wire locations are used in conjunction with watching the CHECK ENGINE light.
I was told by a mechanic that whenever the engine light is on, it's because of an emission problem. To find out what kind of problem, you need to have it checked by a diagnostic machine at an auto shop.
It is on because the computer has detected a problem with the emissions system. Take it to a trusted mechanic for a scan and diagnostic of the problem.
That is a check engine light. It could be many things but it needs to be hooked to a diagnostic machine to determine what the problem is.
I can, and so can anyone else who has a relatively new engine diagnostic code scanner. However, if the problem is not resolved, the light will return as soon as you start the engine
Take to a qualified mechanic for a diagnostic
Check the engine. ===================================================== There is a problem with something that effects the emissions of the engine You need to have the vehicle scanned for any trouble codes to help diagnose and then repair the problem