⚠️ Turbo Boost Sensor and thermostat issues causing limp mode problems, poor fuel economy, DPF issues and excessive carbon buildup on this one.
🚗 Here we have a Skoda Fabia 1.2 (2011 – 112,944 miles) booked in for diagnostic consultation and Engine Carbon Clean.
ℹ️ The owner had booked us in to investigate and clean up the engine (and DPF if necessary). The engine management light and flashing coil light were on.
🔎 Initial inspection found no major issues in the engine bay, but a large amount of background vibration and a significant bass note from the carbon present.
💻 Initial diagnostics showed permanent codes for the turbo boost pressure sensor (explains the coil and engine light).
📊 Live data monitoring showed most live data looking OK, but coolant temperature initially only at 66°C despite being warmed up. Maximum we could attain was 87°C and when tested rapidly dropped into the 70s indicating a new thermostat required.
👨🔧 On with the clean and the engine soon smoothed out and quietened down and by the end it was much quieter, smooth and responsive again.
❗ The owner can now get the thermostat and boost pressure sensor dealt with.
☑️ Full live data Diagnostics
☑️ Which? Trusted Traders approved Engine Carbon Clean
☑️ Safety first, fully insured and IMI Certified
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