Mazda Walnut Blast Cleaning In Bristol
I provide a quality mobile walnut blast carbon cleaning service for Mazda CX5, CX8, Mazda 3, and Mazda 6 vehicles with the Skyactiv-D 2.2 engine.
The Mazda Skyactiv-D 2.2 engine suffers badly from carbon build up all along the EGR circuit, through the intake manifold, the narrow intake runners and intake valve areas. Wet cleans, sprays, or HHO cleans have no effect on this level of carbon build-up, the only way to do the job properly is to strip and clean everything.
Problems normally start with an intermittent engine light (MIL), and the most common Mazda intake carbon related codes we see are the P0101, P0401, and P0488 codes. These generic OBD codes are all normally associated with intake mass air flow (MAF) and EGR valve component problems but in the case of these Mazda engines these codes are more likely to be set due to obstructive carbon build-up causing the ECU to detect air and EGR flow discrepancies. In most cases the components such as the throttle body, EGR valves, MAP sensor, and MAF sensor are actually working ok and just require cleaning as part of the decarbonisation service. The P0101 code is the less predictable code here as in the early Euro 6 engines (2012-2017) it could also be a sign of exhaust camshaft wear causing air flow problems.
The Mazda 6 and CX5 Skyactiv diesel is the toughest and dirtiest decarbonisation job out there but the results are very rewarding with customers normally seeing huge gains in performance, fuel economy and general driveability of the vehicle.
Some before and after walnut blasting images are included here for you to see how things will look inside your engine and the as-new results offered by using my quality decarbonisation service.
These are not exceptional cases, this is normal at around 100k miles for these engines.
I offer two levels of carbon removal service for the Mazda Skyactiv D 2.2 engine and stock the original Mazda gaskets required for reassembly.
The Basic service involves walnut blast cleaning the intake ports and valves, and removal and blast cleaning of the intake manifold, EGR valve + inlet tube. Items A to E in the diagram here. The EGR cooler is cleaned in-situ using chemicals and compressed air, with the soot being safely removed by industrial vacuum. Gaskets 0-5 are changed. Ideal for anyone who has lower mileage, had the EGR cooler cleaned before, would rather spread cost over time, or needs their vehicle back in one day. If you're seeing EGR related codes already then the full service below may be a better option. Price £613. No VAT.
The Full service includes the above basic service plus removal and professional cleaning of the EGR pipe, EGR cooler bypass valve, and EGR cooler in our workshop, items F, G and H. Normally takes 1.5 to 2 days to complete with two visits to your vehicle. Recommended if you've got higher mileage, EGR codes, or would just rather do everything possible in one go for ultimate performance. Price £855. No VAT.
Included in the service are engine diagnostics and a check over for any signs of common problems that these engines can start to suffer around the same mileage such as injector seat leakage, turbo boost problems, vacuum pump problems, and oil pressure related problems.
My mobile service is very popular with car enthusiasts or those that want to see exactly what’s going on with their engine with the work being done at their home. All I need is an off-street location such as a private driveway, and an electric connection. Please just email or whatt's app message me as I'm normally too busy to take calls. Thanks, John.
This is a premium service, carried out with pride by a professional who has been living and breathing engines all their life and the results are very satisfying and rewarding with the potential of huge gains in performance, economy, and driveability.
Why do Mazda Skyactiv D 2.2 engines suffer so badly from carbon build up?
The high level of carbon build-up was largely due to Mazda's decision to go big on Exhaust Gas Recirculation EGR to levels that enabled this engine to meet the original Euro 6 emissions standard without the need for complicated and expensive Selective Catalytic Reduction SCR exhaust aftertreatment (Ad Blue injection). Not having to use Ad Blue saves most motorists hundreds of pounds a year. The only trade-off is the requirement for decarbonisation every 60-80 thousand miles. In the long run this is much more cost effective than filling and maintaining problematic Ad Blue systems, and engines with SCR still have EGR problems, only to a lesser degree. This lack of SCR system was applicable to the 2012-2017 versions of the Skyactiv D 2.2. After this period, SCR was added to meet further-tightened emissions standards, but yes, the carbon build-up still remained as the engine remained mostly the same design.
This page is specific to Mazda engines. For other manufacturers please visit my Walnut Blast Cleaning Page
Contact Me
07435 730960
When contacting me please include your town or postcode prefix, along with your vehicle make, model, year, and basics of any problems.
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