What is P0643 Engine Code [Quick Guide]

[@VTL_xmob_jay]

I have this on my q60! Can it cause bad gas mileage??

[@nondainc]

Hello, possibly-yes. Can you please confirm if this is the only code you're getting?

[@danielromero3444]

I am also getting p0643 code on my 2016 Q50 3.0tt won’t go over 5mph

[@lowlifespore8993]

Did you guys ever figure out the cause of??

[@KVNGVPLAYZ]

@@danielromero3444bro I have this problem right now and it’s sucks dawg my car turns off when I turn the wheel to hard to to the left or right when I drive

[@dlou4149]

what was it?
@@KVNGVPLAYZ