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Toyota Repair/Rough Idle after cleaning throttle body


Hi Ted,

I have a 1997 Toyota Celica GT (2.2L). I decided to take apart the air intake and replace the hose to the airbox and the small hose that was cracked leading to the valve cover (OEM parts). While I had it apart, I sprayed the throttle body with throttle body cleaner and wiped down inside. After that, the car now runs rougher than it did before and is worse in gear. It now displays a check engine light as well. Could I have caused issues with the cleaning?

Thank you


Hello, sorry for the delay in getting back to you it has been a very busy couple of days for me.
Do you have access to a code reader? We need yo check for diagnostic codes first, if you have done that already let me know what the codes are, if not you can visit any of the large autoparts stores they get them for you at no charge, by the way did the light turn on after doing the repair you mentioned?  

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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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