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O2 Sensor?

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blackout
Might be a dumb question, but...  I'm in the middle of welding a custom exhaust and will be sending my ECU to you for a flashing, and I was wondering whether the O2 sensor is still needed after the flashing?  The reason I ask is if it is not needed, there is no sense welding a bung to the new exhaust.
 
Thanks!
 
 

Craig Mapstone
Upstate New York

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2wheeldynoworks
Yes, you will want to weld on an O2 bung and keep the O2 sensor installed.
 
Side note: even if it wasn't necessary, it's a good idea, as it can be used for diagnostics and dyno tuning, or if we have to put you back to a stock ecu setting for some reason, the ecu won't be happy without it plugged in either!
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blackout
Yes, you will want to weld on an O2 bung and keep the O2 sensor installed.  
Side note: even if it wasn't necessary, it's a good idea, as it can be used for diagnostics and dyno tuning, or if we have to put you back to a stock ecu setting for some reason, the ecu won't be happy without it plugged in either!
 
 
O.k., thanks!

Craig Mapstone
Upstate New York

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