Looking at the butterfly in the throttle body
#1
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Looking at the butterfly in the throttle body
My '01 IS300 sucks under acceleration. Cleaned MAP, Throttle body, changed plugs. Took my finger and twisted the accelerator cable to simulate a wipe open throttle. The butterfly valve only went about half way. This would explain the poor acceleration under full throttle. Now, how do I fix this?
#2
I checked my throttle body today, the butterfly is half way. I didnt take the whole throttle body out to clean, but I did clean the side with the air intake. After I cleaned it, the idle is better and my code P0505 went away by itself.
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