Opel Diagnostic Trouble Codes

Common OBD2 fault codes found on Opel vehicles with model-specific causes, known issues, TSBs, and adjusted repair cost estimates. Each guide is tailored for Opel owners.

Emissions

P0106Moderate

Manifold Absolute Pressure/Barometric Pressure Circuit Range/Performance

Opel Astra • 2004-2024

The 1.6L and 1.4L turbo engines (A16LET, A14NET) commonly trigger P0106 from vacuum hose deteriorati...

P0400Moderate

Exhaust Gas Recirculation Flow Malfunction

Opel Astra • 2004-2024

The 1.7 CDTi (Z17DTH/A17DTJ) is very susceptible to EGR clogging, particularly in urban driving. The...

Fuel System

P0170Moderate

Fuel Trim Malfunction (Bank 1)

Opel Astra • 2004-2024

The 1.6L Z16XER and A16XER engines are prone to intake manifold gasket leaks that cause P0170. A com...

P2187Moderate

System Too Lean at Idle (Bank 1)

Opel Astra • 2004-2023

The Astra H and J with the Z16XER and A16XER engines trigger P2187 from intake manifold gasket failu...

P2188Moderate

System Too Rich at Idle (Bank 1)

Opel Astra • 2004-2023

The Astra with Z16XER and A16XER engines triggers P2188 primarily from a contaminated MAF sensor or ...

Misfire

P0302High

Cylinder 2 Misfire Detected

Opel Astra • 2004-2024

The 1.4 Turbo (A14NET/B14NET) in Astra J and K models has documented ignition coil module failures c...

Ignition

P0341Moderate

Camshaft Position Sensor "A" Circuit Range/Performance

Opel Corsa • 2006-2024

The 1.2 and 1.4 petrol engines (Z12XEP/Z14XEP) in the Corsa D are known for timing chain wear after ...

EVAP System

P0455Moderate

Evaporative Emission System Leak Detected (Large Leak)

Opel Corsa • 2006-2024

The Corsa D and E have the charcoal canister mounted near the rear axle where it is exposed to road ...

Electrical

P0600High

Serial Communication Link Malfunction

Opel Astra • 2004-2023

Astra H and J models with Z16XER and A16XER engines can throw P0600 due to a known issue with the EC...

Transmission

P0720High

Output Speed Sensor Circuit Malfunction

Opel Astra • 2004-2023

The Astra H and J with the Aisin AF17/AF22 automatic transmission trigger P0720 due to the output sp...

P0741Moderate

Torque Converter Clutch Circuit Performance/Stuck Off

Opel Astra • 2004-2023

The Astra with the Aisin AF17/AF22 4-speed automatic commonly triggers P0741 above 120,000 km. The T...

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