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Discussion Starter · #1 ·
I've been noticing a slight surging feeling in my 850 T5 lately. It seems to be more noticable when cruising at a constant speed, or when slowly accelerating, up a hill for example. There's no noticable movement on the tach, or any difference in the idle pitch, I can just feel it slightly. My Lambda (O2?) light came on a little while ago, but the surging happens when the car has warmed up, so I don't know if it's related. Anyone have any ideas?
 

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I have the same problem- also tranny issue I just posted-- also low boost- I wonder if all of the problems are related.

My tranny also upshifts wit a bit of a jolt.
 

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normal

It may be when you're using barely any throttle, the car will use it, then you'll gain speed, so not need it, and vacillate back and forth, i know that's the only time i get surging with mine. My mechanic says it's totally normal.
 
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