P20AE Vauxhall Zafira OBD Code

OBD/2 P20AE error code description and symptoms.

Mass Air Flow (MAF) Sensor Intermittent The MAF sensor circuit is monitored by the PCM for sudden voltage (or air flow) input change through the comprehensive component monitor (CCM). If during the last 40 warm-up cycles in key ON engine running the PCM detects a voltage (or air flow) change beyond the minimum or maximum calibrated limit, a continuous memory diagnostic trouble code (DTC) is stored.

As long as the throttle plate remains closed, the idling speed and quality is controlled by the PCM via the idle control valve, and as can be seen from the above it should be clear that idle control on a gasoline engine is a complex affair. For instance, if the engine is started in sub-zero temperatures, the PCM will command the idling control valve to allow less air to enter the engine to enrich the air/fuel mixture to create a condition which is roughly analogous to how chokes worked on carburetted engines to control idling in cold weather.

P20AE Vauxhall Zafira Error Code Repair Process :

When you turn on the ignition, the Service Engine Soon or Check Engine P20AE light should flash briefly, indicating that the OBD system is ready to scan your vehicle for any malfunctions. After this brief flash, the light should stay off while you drive as long as no problems are detected. If p20ae reductant metering unit temperature sensor circuit low so, you'll be glad to know that your vehicle is equipped with an early warning system that could save you time, money, and fuel in addition to helping protect the p20ae reductant metering unit temperature sensor circuit low.

Common Causes of Vauxhall Zafira P20AE OBD2 Code

A common cause of code P20AE is the failure of P20AE Reductant Metering Unit Temperature Sensor Circuit Low, but there are several other possible causes as well, such as ;

Damaged camshaft position (CMP) sensor
Faulty Crankshaft Position Sensor (POS)
Faulty select solenoid
Continuous oil flow to the VCT piston chamber

P20AE is a kind of Powertrain Trouble Code

Powertrain of a modern automobile, comprising engine (with exhaust system), transmission, drive shaft, suspension and the wheels. In a motor vehicle, the term powertrain or powerplant describes the main components that generate power and deliver it to the road surface, water, or air.

Engine OBD 2 Codes website is a freeware resource center for engine trouble codes.

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P20AE Vauxhall Zafira OBD Code

P20AE Vauxhall Zafira Error Code Repair Process :

Common Causes of Vauxhall Zafira P20AE OBD2 Code

P20AE code for other Vauxhall cars