1969 Firebird "Little Big Chief" Chassis Dyno Test
The wide-band oxygen sensor has the ability to accurately read an air/fuel ratio of 10.0:1 to 20.0:1. In contrast, a production OE sensor is only accurate at 14.7:1 air/fuel ratio. Anti-sieze compound is applied to the threads prior to installation. After testing, a plug is threaded into the bung.
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