| This problem suddenly popped up out of nowhere after I swapped out my cd deck. There are two things happening: 1) Idle is around 500-600rpm fluctuating, car feels shaky almost like a miss, vacuum is higher at 15(versus 19-20 normally), wideband shows full lean 2) Intermittent steering wheel heavy or not smooth, feels like its getting stuck or not as much assist when I'm turning Things I've checked: ECU Codes - Code 55 all clear
Power balance test - all cylinders firing and dropping similar amounts
Boost leak test - nothing leaking
Temporary eliminated clutch booster (I heard a hissing underneath pedal area) - no change
All boost/cruise afr is good and normal, only idle afr is way off
Any ideas :/ this one is stumping me, and the steering thing can be kind of sketch during a corner suddenly needing a lot more strength to complete the turn.
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