Diagnostic Consultation and Engine Carbon Clean on a Subaru WRX STI 330s (2009 – 45,709 miles)

💬 ‘Hi Adrian. Took the car for a spin and it’s driving much smoother now, a lot less vibration thanks 😊 Yes very happy thanks! And yes will definitely be back in the future

⚠️ Own a performance petrol or diesel? Not as quiet, smooth, responsive or economical as it used to be? Increased emissions levels?

ℹ️ Over time the carbon deposits left behind from the combustion process cause a drop off in fuel economy, increased engine vibration, increased emissions levels and a decline in response.

🚗 Here we have a modified Subaru WRX STI 330s (2009 – 45,709 miles) booked in for a diagnostic consultation and Engine Carbon Clean. With no apparent running issues the owner wanted to get it checked out and cleaned up, especially with switching to shorter journeys recently and wanting to keep it at its best.

🔎 Initial inspection found little of note in the engine bay, but with all these 2.5 engines the bass purr was evident and the modified exhaust was very boomy.

💻 Initial diagnostics found nothing engine related, but some old codes in other sections for a steering angle sensor, LH airbag, plus others. Once documented and cleared these did not reappear during the booking.

📊 Live data monitoring showed good values across the board and a nice temperature of 90-95°C maintained throughout despite our best efforts showing the thermostat was working nicely.

👨‍🔧 On with the clean and the bass purr from the engine slowly dissipated and along with it the boom from the exhaust. By the end the engine was smooth and quiet again and the exhaust boom was now replaced with a nice burble.

Diagnostic Consultation and Engine Carbon Clean on a Subaru WRX STI 330s (2009 - 45,709 miles)
Diagnostic Consultation and Engine Carbon Clean on a Subaru WRX STI 330s (2009 - 45,709 miles)
Diagnostic Consultation and Engine Carbon Clean on a Subaru WRX STI 330s (2009 - 45,709 miles)
Diagnostic Consultation and Engine Carbon Clean on a Subaru WRX STI 330s (2009 - 45,709 miles)
Diagnostic Consultation and Engine Carbon Clean on a Subaru WRX STI 330s (2009 - 45,709 miles)

☑️ Full live data Diagnostics
☑️ Which? Trusted Traders approved Engine Carbon Clean
☑️ Safety first, fully insured and IMI Certified

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