U0081 Fiat 505 Diagnostic Trouble Code
U0081 Fiat 505 code definition:
U0081 is a kind of OBD-II Diagnostic U-Network Diagnostic Trouble Code for Fiat 505.
U0081 Fiat 505 is triggered when the bank 1 camshaft position sensor doesn't match the signal from the crankshaft position sensor. As you drive and when specific conditions are slowly met, the vapors will gradually purge from the charcoal canister and will get burned within your engine.
Symptoms
Symptoms of a U0081 Fiat 505 diagnostic trouble code may include:
- Faulty PCM
- The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration.
- Poor acceleration
- If the DPF is not cleared the ECU will revert to the "Limp Home Mode" until the situation is corrected
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Possible Causes :
- Fuel with a large percentage of sulfur will clog the DPF quickly
- The Mass Airflow sensor will also cause this problem. Mass Airflow circuit malfunction.
- A large air leak at or near the number one oxygen sensor would also cause a lean mixture.
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Common Misdiagnoses
- Control Module Throttle Actuator Position Performance Problem
- Air Conditioning (A/C) Clutch Feedback Circuit High Voltage Problem
- Cruise Vehicle Speed/Set Speed Difference Too High Problem
- Kick-Down Switch Failed Short Problem
- Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit Problem
Repair Processes :
Look for damage to the tank indicating impact that may have damaged the fuel pump or sender.
Use the DVOM to test resistance and continuity on all system circuits if actuator and sensor resistance levels are in compliance with manufacturer's specifications.
Process Tips
Diagnostic trouble code U0081 Fiat 505 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 U0081 Fiat 505.
Fortunately, U0081 Fiat 505 is a fairly common OBD code, meaning that it applies to all makes and models of vehicles made after 1996.
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