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GS - 2nd Gen (1998-2005) Discussion about the second generation GS300, GS400 and GS430 (1998 - 2005)

P0121 code

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Old May 14, 2026 | 09:50 PM
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3uzchiv
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9th Gear
 
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Default P0121 code
I am getting a p0121 on my 02 gs300 and I am wondering what I could do to fix that ? Any tips on what I should check or look for?
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