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Discussion Starter · #1 ·
Hi guys,

I have a question about Lambda sign. This sign is always on on my 1993 850 T5. As I know this Lambda is something related with exhaust system and also saves some fuel. Can anybody say how much fuel it saves and should I replace it or not. Thanks in advance.
 

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lambda is ref to stociometric [oxygen] sensor

I feel by 1990 it is CONTROLLING the fuel ratios and not just monitoring [as in my good old 1976 volvo]

so if it say it no wurkenzie I say yo replaceenzie or yo in deepest problemzie

[gosh I avoided some nasty words there]

in short take the advice of the warning light and replace the bad bit
 

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