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Discussion Starter · #1 ·
I was wondering if you could mount the sensor on the down pipe where the original sensor is? Also could someone advise which wire on the megasquirt I splice the white wire into? I take it I don't need the blue serial wire?
 

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The futher from the manifold, the better. Mine is located just before the cat - i'm turbo'd and i have a Begi downpipe which has a bung just before the cat. O2 sensors don't like too much heat. Stock O2 location is OK but not ideal.
What is the white wire for? I can't remember offhand but for MS2 the O2 sensor is pin 23.
 

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Discussion Starter · #3 ·
Thanks for that
The white wire is the one that sends the details to the ecu so must go to pin 23 if that's for the O2 sensor
 
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