P320A Austin 16 Diagnostic Trouble Code
P320A Austin 16 code definition:
P320A is a kind of OBD-II Diagnostic P-Powertrain Diagnostic Trouble Code for Austin 16.
P320A Austin 16 is described as Fuel System Too Rich, which basically means bank 1's oxygen sensor has detected a rich condition of fuel. This means there's not enough oxygen in the exhaust from too much fuel being delivered into the air and gas mixture for combusion. So if the problem persists despite of your diagnosis, then you should never hesitate to take your vehicle to your dealer or to a qualified mechanic.
Symptoms
Symptoms of a P320A Austin 16 diagnostic trouble code may include:
- Vacuum leak on the engine
- Reduction in engine performance, especially at low RPM levels
- Engine surge
- 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
- Rarely - faulty Powertrain Control Module (PCM-programming required after replacement)
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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 :
Pack the connector cavity with dielectric silicone compound (same stuff they use for light bulb sockets and spark plug wires) and reassemble.
Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.
Process Tips
Diagnostic trouble code P320A Austin 16 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 P320A Austin 16.
Fortunately, P320A Austin 16 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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