Common rich burn sensors are 12028, 15718, 13190, and 15703. A common lean burn sensor is the 17025.

Common rich burn sensors are 12028, 15718, 13190, and 15703. A common lean burn sensor is the 17025.

The Rich Burn is a standard narrow band type oxygen sensor and are only capable of accurately measuring a stoichiometric air/fuel ratio (e.g. 14.7:1). The Lean Burn is a planar ZrO₂ two-cell limit current sensor with an integral heater suitable for measuring the oxygen content and the λ value of exhaust gases in vehicle engines.