November 26, 201015 yr no codes, starts fine, but after it warms it;s fine, knock sensor seems to have a crack in it,
November 26, 201015 yr Best 'guess': You're in 'limp/fail-safe mode' due to the knock sensor, which lowers performance....not sure why there's not a code?? A cracked KS needs fixed regardless - used or new ($50 online). Edited November 26, 201015 yr by wtdash
November 27, 201015 yr Author replaced knock sensor , crack in old one, also bolt holding it in place was very loose, . will see if it help anything , no code before,
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