49+ Air Fuel Ratio Sensor Wiring Diagram Images. Looking similar to a conventional oxygen sensor, the a/f sensor has more wires. Depending on the engine operating conditions, the heater heats the sensor elements to activate them.
PLX Wideband O2 Air Fuel Ratio Sensor Modules, Gauges, and ... from www.plxdevices.com 2) and engine control relay. A p1155 or p1135 code indicates you have a bad sensor. This is a really cool topic to explore because there aren't exactly simple and easy.
Looking similar to a conventional oxygen sensor, the a/f sensor has more wires.
Narrow band o2 sensors are designed to measure stoichiometric chemically correct air/fuel mixtures a/f of 14.7:1 to allow catalytic converters to work efficiently. On 2 wire sensors, one wire is ground and the other is the signal. To be fair though, most aftermarket gauges will read lambda and convert that number to an a/f. The air fuel ratio sensor is installed in the exhaust manifold or in the front exhaust pipe, before the catalytic converter.
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