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View Full Version : Faulty lambda sensors



SBK740
05-27-2013, 12:57 AM
Hi all

I have the following error messages on INPA for my E38:
"35 lambdaregler-adaption ti additiv bank 2"
"27 lambdaregler-adaption ti additiv"

Which lambda sensor needs replacing - it says bank 2 on the first message but I don't know if that's pre or post cat. I'm making the assumption I have two on each exhaust.