Browse the glossary using this index
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Circular rubber rings used to seal pipe and other connections.
Oxygen sensor, lambda EGO or HEGO sensor to provide exhaust oxygen content signal to the ECM.
On board diagnostic. A connector for diagnostic analysis of a vehicle's electronic systems.
Onboard Diagnostics One
Onboard Diagnostics Two
The goal intended to be attained and which is believed to be attainable.
Information that is unbiased and open minded.