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Error po521 p2000 - 1998 Holden VT Commodore

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P2000 - Oxides of Nitrogen Trap Efficiency Below Threshold Bank 1
- Sensor or solenoid faulty - Connector terminal contact is damaged or corroded
- Wire harness - Check harness for correct voltage, open, short to ground or short to voltage
- Update control unit software - Check for the latest control unit update
- Powertrain or Engine Control Module faulty
- Catalytic converter damage
- Catalytic converter improper operation

Jan 17, 2015 | Cars & Trucks

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What does jeep code p2000 mean

Your NOx trap efficiently is below threshold.

Sep 10, 2014 | 2008 Jeep Patriot

1 Answer

Engine light stays on codes PO521 and PO523

Both codes are for a problem with the oil pressure sensor. The sensor and circuit would need to be checked.

Jan 23, 2014 | 2007 Chevrolet Tahoe

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Po521 code on a 2010 Camaro ss

Possible causes
- Low oil level or motor mechanical fault
- Faulty oil pressure sensor
- Oil Pressure Sensor harness is open or shorted
- Oil Pressure Sensor circuit poor electrical connection

When is the code detected?
The P0521 is detected when the signal sent from oil pressure sensor to PCM goes out of range.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Oil pressure warning light ON.
P0521 Chevrolet Description
The PCM continuously monitors the engine oil pressure. The Oil Pressure Sensor/Switch sends a signal to the PCM when the engine is running.

Oct 30, 2013 | 2006 Jeep Commander Limited

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Chevrolet cruze p2000 code and others problems

P2000 NOx Trap Efficiency Below Threshold Bank1
If you go to you can read about this defect. The battery light is telling you that the charge in the battery is not a full charge. Have autozone or one like it to test the battery and alternator. I believe if you correct the battery issue the other problems should go away.

May 21, 2017 | 2011 Chevrolet Cruze

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My code that came up when the engine light came on was PO521

P0521 Jeep - Engine Oil Pressure Sensor/Switch Circuit Range/Performancexicon.jpg CodePossible causes- Low oil level or motor mechanical fault
- Open or short oil level sensor circuit condition
- Poor oil level sensor electrical connection
- Faulty oil pressure sensor

Jul 02, 2012 | 2006 Jeep Commander Limited

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Check engine light on had obd ll code read. shows p2000 according to auto parts store reader. definition shows for a failed honda catalytic converter?

code po2000 nox bank 1 trap efficiency below threshold. your catalytic converter is causing the problem. maybe this will help.

Apr 07, 2010 | 2007 Dodge Ram Truck

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