P0A55 Glas Isar Diagnostic Trouble Code
P0A55 Glas Isar code definition:
P0A55 is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code for Glas Isar.
P0A55 Glas Isar shows up when there's an electrical problem that causes the fuel volume regulator to malfunction and open. It's quite an unusual problem and likely intermittent. Other symptoms that may indicate this problem are when the Check Engine Light illuminates and when there is a visible lack of engine power.
Symptoms
Symptoms of a P0A55 Glas Isar diagnostic trouble code may include:
- Faulty O2 Sensor
- Lack of power
- If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
- Reduction in engine performance, especially at low RPM levels
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Possible Causes :
- A faulty oxygen sensor. This will set a code in itself, however, a faulty oxygen sensor does not automatically condemn the sensor. The code just means that the sensor signal was not within specifications. An air leak or any of the above will cause an erroneous signal. There is a multitude of O2 codes relating to O2 performance which gives a clue to the problematic area.
- Some aftermarket accessories and performance modifications
- Fuel with a large percentage of sulfur will clog the DPF quickly
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Common Misdiagnoses
- Crankshaft Position Sensor Circuit Performance Problem
- TP Sensor Learn Not Complete Problem
- Low Coolant Circuit Problem
- Cruise Control System - Vehicle Accel Too High Problem
- Kick-Down Switch Failed Short Problem
Repair Processes :
Look for missing ground strap or a rusty ground where the fuel tank is grounded to the frame. Check for damage to the wiring harness connector.
Check to make sure they are not burnt or corroded. If in doubt, get some Electrical Contact cleaner at any parts store if cleaning of the terminals is needed.
Process Tips
Diagnostic trouble code P0A55 Glas Isar is not difficult to diagnose and repair. Thus, it always pays to have a qualified technician to look after your vehicle should this error code arise.
Diagnosing this code requires the engine to be in good running shape, without unmetered air entering the engine. If other codes that relates to misfiring condition, lean running or air entering the engine is present, then you must first fix those error codes before P0A55 Glas Isar.
Fortunately, P0A55 Glas Isar is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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