Quote:
Originally Posted by David Inc.
Well if you disconnect the O2 it stays in open loop. Probably better to be in a situation where the car isn't trying to "fix" a vacuum leak by adjusting fuel mix, right?
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Would you expect there to be some drivability or idle issues in open loop if there was a vacuum leak? Also the wideband is showing that the ECU is trying to lean the mixture when in closed loop (Bouncing from 14.5 - 15.5), shouldn't it try to richen if there was a vac leak?