TECH Idle Problems It explains how to take everything apart and how to clean/adjust including pictures and an explanation of the function of all the separate parts. Good luck.
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90 300zx TT 13.285@106.08 (old stock turbo set up) 94 Camaro Z28 13.751@101.83 03 WRX 13.973@94.88 02 Mazda MPV; four kids and a wife don't fit in the Z. 90 240sx (sold) 16.9@87