â ī¸ Turbo Boost Sensor and thermostat issues causing limp mode problems, poor fuel economy, DPF issues and excessive carbon buildup on this one.
đ Here we have a Skoda Fabia 1.2 (2011 – 112,944 miles) booked in for diagnostic consultation and Engine Carbon Clean.
âšī¸ 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.
đ 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.
đģ Initial diagnostics showed permanent codes for the turbo boost pressure sensor (explains the coil and engine light).
đ 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.
đ¨âđ§ 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.
â The owner can now get the thermostat and boost pressure sensor dealt with.
âī¸ Full live data Diagnostics
âī¸ Which? Trusted Traders approved Engine Carbon Clean
âī¸ Safety first, fully insured and IMI Certified
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