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Toyota Repair/problems with my toyotas emitions


ive been having problems with my toyota regarding emitions when i go to get it smogged and i dont know what i can do to help my 4runner pass smog. Its running high emitions and is running alil rough from it any help would be great if u need more info please let me know

hello, high emission readings are usually due to a malfunction of the emission control system but you mentioned it runs a little rough so I would think that this is related, an engine misfire will dramatically increase exhaust emissions so you'll need to take care of the misfire first, this could be bad spark plugs, plug wires or distributor cap cracked, try replacing these items and see if it runs better.

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Ted Ritter


I have more than 28 years experience as toyota technician, I will be able to answer most questions related to the Toyota product line up to the present year models,I am located in the US but welcome questions from other regions of the world. When asking a question please provide specific information: year,model, engine,transmission information. Provide as much information as possible including a brief repair history if possible. I have been a volunteer here for more ten years an have answered over 16,000 questions helping Toyota owners with their problems and save thousands of dollars without any compensation, some of my answers are published on many other websites including google and various automotive forums. DONATIONS ARE VERY MUCH APPRECIATED, IF YOU HAVE RECIEVED HELPFUL INFORMATION PLEASE MAKE A DONATION. AS OF TODAY (JULY 22, 2014) ALL REQUESTED GRAPHICS, ILLUSTRATIONS, DIAGRAMS, PHOTOS, WILL REQUIRE THE MINUMUM DONATION UP FRONT.


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