From around 2008 -2009 most diesel vehicles were fitted with a DPF (Diesel Particulate Filter) designed to reduce exhaust gas emissions by capturing the miniscule particle matter that is expelled from a vehicles exhaust.
By way of a specific catalytic filter fitted after the turbo and before the mid-section of the exhaust system, this filter is able to capture the soot that is created after the diesel fuel is burnt in the engine. A combination of carbon and nitrogen oxide (Nox) create highly toxic and poisonous pollutants which are the make-up of this soot. By using a very specific type of catalyst material and design these particles are attracted to the material used in this filter and as a result capture 90% of this soot matter. If that makes sense!
Over time this soot starts to clog up the small channels of the DPF and cause reduced power symptoms or even safe / limp mode. This mode is designed to protect the engine from any catastrophic damage. Normally a diesel engine is programmed to regenerate the DPF after a specified mileage or when a measured amount of soot is calculated by various sensors and software parameters written in the ECU. However, this regeneration process can fail for a number of reasons, the most common being short / stop / start journeys where the engine is unable to get up to full operating temperature required to enable the regeneration procedure of burning off the accumulated soot particles. Other contributory factors such as poor fuel quality, faulty sensors, intake problems, turbo failure, EGR valve (Exhaust Gas Recycling Valve) faults etc can also cause the regeneration process to fail.
Some vehicle manufacturers create a mileage specific lifespan for a DPF which will then require the costly replacement of a filter once this set mileage has been reached regardless of the physical condition of the filter itself.
Fortunately, we are an independent DPF specialist that can accurately diagnose your DPF problems and any underlying faults that have caused your DPF Light to appear. You may be experiencing severe EGR problems, INJECTOR issues or even a dramatic loss of power. With the aid of TUNAP AUTOMOTIVE CHEMISTRY we can offer a cost-effective solution without involving costly repair bills.
We are able to offer various preventative procedures to allow your vehicle to operate efficiently and safely without any further costly repairs or unnecessary replacement parts.
Based in Loanhead, Midlothian, we serve the Lothians & Borders, Fife, Strathclyde & Argyll, Perthshire and Tayside
For a free quote or to find out more, drop us a line or give us a call:
Phone: Euan : (Workshop & Mobile service): 07866 731 717
James : (Workshop & Mobile) – 07904 890 740 Michael : (Mobile) - 07948 089 158
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Manual differential pressure reading of DPF
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Stage 2 of TUNAP DPF flushing
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Stage 2 full DPF flush using JLM products.
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Stage 2 full DPF flush using JLM products.
What is an EGR valve and what's its purpose in an engine?
Here is a simplified explanation of what an Exhaust Gas Recirculation Valve is designed to do!
As far back as 1973 vehicle manufacturers were required by law to start to reduce the amount of particle soot matter from a diesel / gasoline engine. This was a very complex and technically challenging task to develop a solution. In internal combustion engines exhaust gas recirculation (EGR) is a nitrogen oxide (NOx) emissions reduction technique used in petrol/gasoline and diesel engines. EGR works by recirculating a portion of an engine's exhaust gas back to the engine cylinders.
The EGR valve was designed to reduce exhaust NOx gas by diluting the O2 in the incoming air stream and provide gases inert to combustion to act as absorbents of combustion heat to reduce peak in-cylinder temperatures. NOx is produced in high temperature mixtures of atmospheric nitrogen and oxygen that occur in the combustion cylinder, and this usually occurs at cylinder peak pressure.
The very early EGR valve system was developed to recycle 5% -15% of exhaust gases without affecting vehicle output, performance and economy. However, this technology did not come without problems. Recycling the exhaust gas meant effectively reburning particulate deposits mixed with oil in the engine and thereby causing deposits of carbon to accumulate and effectively cause premature engine wear. Not an ideal situation as it resulted in reduced power and significant loss of economy. Today's modern diesel engines with new updated EGR systems now recycle up to as much as 80% of exhaust gases incorporating the introduction of DPF and AdBlue technology to reduce emissions even further. Petrol engines now have PPFs fitted which are the equivalent of a DPF.
Needless to say, carbon deposits still cause the majority of EGR valve failures and an even greater volume of replacement/repairs are required due to the increased percentages of recirculated particulates.
That’s where Octane Tuning is able to assist you. By carrying out a detailed and in-depth diagnostic analysis of the engine, we are able to pinpoint the root cause of the failure and advise accordingly.
With our custom written solutions, we are able to adapt the EGR cycle within the ECU preventing further loss of power and reduced economy and unnecessary expensive repair bills. For newer vehicles still under manufacturer's warranty we can offer our specialist EGR Cleaning Service using TUNAP Automotive Chemistry approved by all the major marques.
Performance, Economy and Power. Your vehicle is safe in our hands.
All our services are bound by these terms and conditions. 2.All vehicles must be in full working mechanical order and should be fully checked before booking a remap. 3.OCTANE Tuning reserves the right to not carry out a remap on any vehicle if faults are found. 4.OCTANE Tuning reserves the right to charge costs for coming out, even if no remap is carried out for any reason. For example, faults with the vehicle. 5.OCTANE Tuning take no responsibility for loss of radio codes or any other vehicle data while carrying out a remap. 6.OCTANE Tuning reserves the right to refuse any of its services to anyone for any or no reason whatsoever. 7.All remap figures are approximate figures and will vary between vehicles. 8.Any work carried out will be as per customers request. 9.OCTANE Tuning do not accept liability for personal injury, loss of earnings, accidents, damages, faults, legal claims or any other claim during or after a remap under any circumstances. 10.It is your responsibility to inform your insurance company of the remap. 11.OCTANE Tuning do not offer any type of warranty for your vehicle. 12.OCTANE Tuning do not accept responsibility for any serviceable item and/or mechanical part including turbo, clutch/flywheel and engine internals or electrical parts that fails. We accept no claim for labour and/or parts under any circumstances. 13.Refunds are strictly at OCTANE Tuning's discretion. 14.All payments are due on completion of the work. 15.OCTANE Tuning reserve the right to change or alter any of these terms and conditions on this page at any time.
OCTANE Tuning reserve the right to cancel, postpone or rebook any bookings for any reason. For example, bad weather conditions. 2.Any dates offered for booking will only be available for 24 hours. Unless the booking is confirmed within the 24 hours, the date will then be available to other customers. 3.OCTANE Tuning reserve the right to take a non-refundable deposit to confirm your booking, by accepting these terms and conditions you agree that after the cooling off period your deposit will be non-refundable, regardless of any change to the booking. 4.OCTANE Tuning offer a 14 day cooling off period from the date of the received payment. 5.All bookings will be under these terms and conditions and by contacting OCTANE Tuning you are agreeing you have read, understand and agree to these conditions....