C0158 Austin Maestro Diagnostic Trouble Code
C0158 Austin Maestro code definition:
C0158 is a kind of OBD-II Diagnostic C-Chassis Diagnostic Trouble Code for Austin Maestro.
C0158 Austin Maestro is described as Oxygen Sensor Circuit No Activity Detected (Bank 1, Sensor 1). This means there's a problem in the front oxygen sensor on Bank 1, as the O2 sensor is inactive. 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 C0158 Austin Maestro diagnostic trouble code may include:
- If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
- Corroded or damaged connector
- Reduction in engine performance, especially at low RPM levels
- The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
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Possible Causes :
- Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
- Low fuel pressure caused by a clogged filter, failing fuel pump, failed fuel pressure regulator or clogged or leaking injectors.
- Fuel with a large percentage of sulfur will clog the DPF quickly
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Common Misdiagnoses
- Vehicle Speed Output Circuit Problem
- Cruise Control Servo Indicates Low Problem
- A/C System High Pressure High Temperature Problem
- PCM Stack Overrun Problem
- Transmission Control Module Reprogrammable Memory Problem
Repair Processes :
Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.
It should be pretty close to battery voltage (12 volts). If not, then this is the circuit that has the problem.
Process Tips
Diagnostic trouble code C0158 Austin Maestro 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 C0158 Austin Maestro.
Fortunately, C0158 Austin Maestro is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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