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Old 01-09-2005, 10:39 PM   #3
cnk
Scooby Guru
 
Member#: 10757
Join Date: Oct 2001
Chapter/Region: Tri-State
Location: NJ
Vehicle:
2013 BRZ Limited 6MT
DGM

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No. .they're not the same. WBO2 is used to detect the air/fuel ratio while EGT is used to detect exhaust gas temperature. An EGT gauge will tell you if your engine is running too hot or too cold, while the WBO2 will tell you if you're running too rich or too lean. They are related to one another since the leaner you run, the higher your EGT's will be and vice versa. Most people get an EGT gauge. A WBO2 is nice, but it's more expensive and unless you have a need for one in order to do tuning on your car, I would say an EGT would be sufficient.

Calvin
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