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Alfa Romeo 159 Fault Codes


You can find common Alfa Romeo 159 fault codes on this page that when clicked take you to a detailed description.

You can also type in the fault code you are getting below to find a more detailed description.

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Alfa Romeo 159 Recalls

When a car manufacturer detects a problem with a model they put out a recall notice and more often than not offer to fix the problem free of charge.

You can check to see if your Alfa Romeo 159 has any recall notices on our sister site AutoRecalls.co, sorted by model year.

View Alfa Romeo 159 Recalls »
Recall Notice Icon

Error Icon P0091

Fuel Pressure Regulator Control Circuit Low

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Severity Icon 7/10

Error Icon P0010

Intake Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 7/10

Error Icon P0094

Fuel System Leak Detected - Small Leak

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Severity Icon 8/10

Error Icon P0016

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor A

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Error Icon P0168

Engine Fuel Temperature Too High

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Error Icon P0180

Fuel Temperature Sensor A Circuit Malfunction

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Severity Icon 9/10

Error Icon P0300

Random/Multiple Cylinder Misfire Detected

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Severity Icon 4/10

Error Icon P0101

Mass or Volume Air flow Circuit Range/Performance Problem

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Error Icon P0111

Intake Air Temperature Circuit Range/Performance Problem

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Severity Icon 7/10

Error Icon P0401

Exhaust Gas Recirculation Flow Insufficient Detected

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Severity Icon 8/10

Error Icon P0335

Crankshaft Position Sensor A Circuit Malfunction

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Error Icon P0480

Cooling Fan 1 Control Circuit Malfunction

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Error Icon P0856

Traction Control Input Signal

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Error Icon P0039

Turbo/Super Charger Bypass Valve Control Circuit Range/Performance

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Error Icon P1175

Cam Control Fault

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Severity Icon 6/10

Error Icon P1206

Injector Circuit Open / Shorted - Cylinder #6

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Error Icon P1720

Vehicle Speed (Meter) Circuit Malfunction

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Error Icon P1172

Rotor Control Fault

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Error Icon P1173

Rotor Calibration Fault

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Error Icon P1670

Electronic Feedback Signal Not Detected

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Error Icon P1135

Pedal Position Sensor A Circuit Intermittent

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Error Icon P1723

Gear 3 incorrect Ratio

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Error Icon P1724

Gear 4 Incorrect Ratio

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Error Icon P1594

"B" Camshaft Position Actuator Control Open Circuit Bank 2

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Error Icon P1159

Fuel Stepper Motor Malfunction

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Error Icon P1238

Fuel Pump Secondary Circuit Malfunction

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Error Icon P1850

Transmission Transfer Case Contact Plate 'B' Circuit Failure

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Error Icon P2002

Diesel Particulate Filter Efficiency Below Threshold Bank 1

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Severity Icon 8/10

Error Icon P0340

Camshaft Position Sensor Circuit Malfunction

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Error Icon P0238

Turbocharger Boost Sensor A Circuit High

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Severity Icon 9/10

Error Icon P0011

Intake Camshaft Position Timing - Over-Advanced (Bank 1)

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Severity Icon 9/10

Error Icon P0012

Intake Camshaft Position Timing - Over-Retarded (Bank 1)

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Severity Icon 7/10

Error Icon P0013

Exhaust Camshaft Position Actuator Circuit / Open (Bank 1)

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Severity Icon 8/10

Error Icon P0014

Exhaust Camshaft Position Timing - Over-Advanced (Bank 1)

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Severity Icon 8/10

Error Icon P0017

Crankshaft Position Camshaft Position Correlation Bank 1 Sensor B

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Severity Icon 4/10

Error Icon P0036

Heated Oxygen Sensor (HO2S) Heater Control Circuit Bank 1 Sensor 2

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Severity Icon 4/10

Error Icon P0102

Mass or Volume Air Flow Circuit Low Voltage Input

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Severity Icon 8/10

Error Icon P0106

Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance Problem

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Severity Icon 8/10

Error Icon P0113

Intake Air Temperature Circuit High Input

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Severity Icon 4/10

Error Icon P0128

Coolant Thermostat (Coolant Temp Below Thermostat Regulating Temperature)

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Severity Icon 6/10

Error Icon P0131

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 1)

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Severity Icon 7/10

Error Icon P0134

O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

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Severity Icon 6/10

Error Icon P0135

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)

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Severity Icon 4/10

Error Icon P0137

O2 Sensor Circuit Low Voltage (Bank 1 Sensor 2)

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Severity Icon 6/10

Error Icon P0138

O2 Sensor Circuit High Voltage (Bank 1 Sensor 2)

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Severity Icon 6/10

Error Icon P0141

O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 2)

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Severity Icon 7/10

Error Icon P0171

System Too Lean (Bank 1)

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Severity Icon 5/10

Error Icon P0172

System Too Rich (Bank 1)

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Severity Icon 5/10

Error Icon P0175

System Too Rich (Bank 2)

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Severity Icon 8/10

Error Icon P0301

Cylinder 1 Misfire Detected

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Severity Icon 8/10

Error Icon P0302

Cylinder 2 Misfire Detected

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Severity Icon 8/10

Error Icon P0303

Cylinder 3 Misfire Detected

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Severity Icon 8/10

Error Icon P0304

Cylinder 4 Misfire Detected

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Severity Icon 8/10

Error Icon P0305

Cylinder 5 Misfire Detected

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Severity Icon 8/10

Error Icon P0306

Cylinder 6 Misfire Detected

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Severity Icon 3/10

Error Icon P0325

Knock Sensor 1 Circuit (Bank 2 or Single Sensor)

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Severity Icon 8/10

Error Icon P0332

Knock Sensor 2 Circuit Low Input (Bank 2)

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Severity Icon 6/10

Error Icon P0341

Camshaft Position Sensor Circuit Range/Performance

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Severity Icon 7/10

Error Icon P0420

Catalyst System Efficiency Below Threshold (Bank 1)

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Severity Icon 7/10

Error Icon P0430

Catalyst System Efficiency Below Threshold (Bank 2)

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Severity Icon 3/10

Error Icon P0441

Evaporative Emission Control System Incorrect Purge flow

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Severity Icon 3/10

Error Icon P0442

Evaporative Emission Control System Leak Detected

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Severity Icon 3/10

Error Icon P0446

Evaporative Emission Control System Vent Control Circuit Malfunction

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Severity Icon 4/10

Error Icon P0449

Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

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Severity Icon 4/10

Error Icon P0455

System Gross Leak Evaporative Emission

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Severity Icon 3/10

Error Icon P0456

Evaporative Emissions System Small Leak Detected

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Severity Icon 5/10

Error Icon P0463

Fuel Level Sensor Circuit High Input

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Severity Icon 3/10

Error Icon P0496

Evaporative Emission System High Purge Flow

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Severity Icon 3/10

Error Icon P0507

Idle Control System RPM higher Than Expected

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Severity Icon 9/10

Error Icon P0700

Transmission Control System Malfunction

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Severity Icon 7/10

Error Icon P2096

Post Catalyst Fuel Trim System Too Lean Bank 1

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Severity Icon 6/10

Error Icon P2097

Post Catalyst Fuel Trim System Too Rich Bank 1

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Severity Icon 9/10

Error Icon P2135

Throttle/Pedal Position Sensor/Switch A / B Voltage Correlation

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Severity Icon 9/10

Error Icon P2138

Throttle/Pedal Position Sensor/Switch D/E Voltage Correlation

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Severity Icon 7/10

Error Icon P219A

Bank 1 Air/Fuel Ratio Imbalance

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Alfa Romeo 159 Image

About the 159

A compact executive vehicle, the 159 was created by Alfa Romeo in 2004 and was designed by Giogetto Giugiaro (a designer made famous for cars like the Lotus Espirit, Daewoo Lanos, Saab 600, Maserati 5000 GT and the SEAT Ibiza).

The Italian car company offered the 159 in a variety of petrol and diesel engines and installed the classic ‘V’ onto the front grille.

The Alfa Romeo 159 can suffer a number of problems common to the vehicle, one of the most notable triggers code P0091. P0091 essentially means that the powertrain module has discovered a fuel pressure that registers way below the specified range.  There could be a number of causes, it is generally recommended that a mechanic be consulted to determine the precise issue, but a few problems may arise from the fuel pump, a troubled PCM or simply that the fuel tank is running on low.  There are a number of symptoms that will help in discovering the error code, one can expect to experience a stuttered start upon switching on the ignition, poor fuel economy or just a low output of power.

Another common fault code for the 159 is P0010, a code attached to the engine’s mechanical variable timing. To regulate emissions, cars are equipped with a system that can up the engine valve lift when required. When this code shows, it signals a problem with a variation in timing between the bank 1 camshaft and crankshaft. Several things can cause this fault code, be it engine oil sludge or wiring damage but the result is a poorly idling engine, low fuel economy and an ultimate failing of the emissions test.

P0094 shows when a small leak is detected in the fuel system; this can result in decreased fuel efficiency, an unusual fuel smell and the check engine light flashing. Perhaps the most severe result of this fault is combustion resulting in a fire outbreak.