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2C9D - Lambdasond heating before catalystator 2, activation

3K views 0 replies 1 participant last post by  AdamWolves15 
#1 ·
Hi All,

I am a new owner of a BMW 335I which I love, but has a couple of problems can someone help me please? I have the EML light on my BMW 335I E92, I can take it off but comes back on, am I right in saying this is the pre cat O2 sensor which is the GREY wire and not the BLACK wire? I have found 2 different parts on the realOEM, but I'm struggling to see which one is the one I need? or can someone tell me where exactly its located?

any suggestions would be most grateful.
 
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