Lambda response too slow, MK5 GTI

   #1  

Tadinis

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Hey all, so I bought my girlfriend a Golf mk5 GTI, it's getting bad fuel consumption, shoots little flames, getting code for Lambda B1 S1 - response too slow. It has no catalytic converter, check engine light is on. I changed the lambda sensor before the cat and no difference. Maybe there's something I can do or try out? Thanks.
 
   #2  

iichel

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So you removed the catalytic converter and now it's complaining about lambda sensors?

Post a scan to start with please.
 
   #3  

Tadinis

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Figured out the issue, lambda was bad, 0.45v and wasn't changing at all, unpluged and showed 1.50v, will change the lambda and will see if it fixes it
 
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Uwe

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