What Does P0159 Mean? OBD-II Code P0159 is defined as a O2 Sensor Circuit Slow Response The purpose of the oxygen sensor is to measure the oxygen content in the exhaust gases after they leave the combustion process of the engine. This information is critical to the PCM's ability to maintain efficient fuel economy. When the PCM detects a failure of the sensor or the information received from the sensor, it will set code P0159. engine code P0159P0159 fixobd P0159dtc P0159obd code P0159obd2 P0159P0159 car codediagnostic code P0159car code P0159check engine code P0159fehlercode P0159P0159 fiatcodigo P0159codigo falla P0159P0159 kody b??dówcodigo de falla P0159 What are the common causes of P0159 ? Possible causes include a faulty oxygen sensor, faulty electrical connector at the oxygen sensor, faulty or shorted wiring in the oxygen sensor circuit, a blown fuse for the oxygen sensor (if applicable), low or excessive fuel pressure, a vacuum leak on the engine, excessive exhaust leaks, or a faulty PCM. PCM failure is rare. What are the symptoms of P0159 ? Symptoms of a P0159 diagnostic trouble code may include: Rich or lean exhaust Fuel pressure too low Engine surge Hesitation upon acceleration How do you troubleshoot P0159 ? There are currently two main types of cylinder deactivation used today, depending on the type of engine. P0159 code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed. Searches related to P0159 - O2 Sensor Circuit Slow Response Bank 2 Sensor 2 p0159 jeep liberty p0159 hyundai 2004 jeep grand cherokee p0159 p0159 nissan maxima p0158 nissan p0159 bmw p1167 nissan p0159 kia sportage