P0134 – O2 Sensor Circuit No Activity Detected Sensor 1 Bank 1: The front heated oxygen sensor (or O2 sensor 1) is placed into the exhaust manifold. It detects the amount of oxygen in the exhaust gas ...

P0155 – O2 Sensor Heater Circuit Malfunction Bank 2 Sensor 1: Oxygen sensors (O2S) or heated oxygen sensors (HO2S) need to reach a minimum operating temperature of 750 degrees Fahrenheit to produce an ...

ZMD has introduced the ZMD31150, an automotive signal-conditioner IC with on-chip diagnostics. The part is intended for use with wheatstone bridge sensors in applications such as fuel injection, ABS, ...

Matching a sensor interface with a programmable logic converter or controller hardware that can accept only one type of input—npn or pnp—can be difficult. The last-stage modification circuit described ...