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· Last stock TT on Earth
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Discussion Starter · #1 ·
I had a low idle (~500-550rpm) after warming up which was somewhat erratic/rough. Replaced IACV check valve with a new one since it was cheap and cleaned IACV valve body with throttle body cleaner and idle is back to 650-700RPM and steady. Probably didn't need new check valve but a new metal gasket is a must for a good seal...Hallelujah!
 
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