U0912 Rover 100 Diagnostic Trouble Code
U0912 Rover 100 code definition:
U0912 is a kind of OBD-II Diagnostic U-Network Diagnostic Trouble Code for Rover 100.
U0912 Rover 100 is defined as Ignition Coil B Primary/Secondary Circuit Malfunction.This code is a generic trouble code, meaning it applies to all vehicles equipped with OBD-II tool, or vehicles made since 1996 up to present. 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 U0912 Rover 100 diagnostic trouble code may include:
- Reduction in engine performance, especially at low RPM levels
- Vacuum leak on the engine
- Diminished fuel efficiency
- The engine oil will exhibit dilution from the ECUs attempts to increase engine temperature. Some vehicles advance the fuel injection timing slightly after top center to afterburn a small amount of fuel to increase exhaust temperatures. Some of this fuel enters the crankcase. When the ECU determines the necessity to regenerate the DPF, the service life of the oil be shortened significantly
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Possible Causes :
- A large vacuum leak would cause a massive amount of un-metered air to enter the intake manifold resulting in an overly lean mixture.
- Faulty IMRC actuator/sensor
- Dirty air cleaner element Damaged DPF
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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 :
You might continue by connecting the scanner to the vehicle diagnostic connector and retrieving all stored codes and freeze frame data.
Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.
Process Tips
Diagnostic trouble code U0912 Rover 100 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 U0912 Rover 100.
Fortunately, U0912 Rover 100 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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