What is EGR?
A term that often pops up when discussing engine performance, emissions, and fuel efficiency is EGR or Exhaust Gas Recirculation.
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A term that often pops up when discussing engine performance, emissions, and fuel efficiency is EGR or Exhaust Gas Recirculation.
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An Exhaust Gas Recirculation (EGR) controls nitrogen oxide emissions by recirculating a portion of the exhaust gas back into the engines intake by lowering combustion temperature.
EGR maintenance is important to ensure the reduction of nitrogen oxide emissions and improve fuel efficiency. Performance issues can be caused by carbon buildup in the EGR valve which is why maintenance is important.
EGR cleaning removes carbon to ensure the the EGR system functions properly. This is done using specialist cleaners and removal methods. The passages to the valve are also cleaned to ensure there are no blockages. This helps reduce chances of damage caused by carbon buildup.
The frequency of EGR cleaning depends on your driving habits and the vehicle’s usage. Typically, a EGR might need cleaning every 50,000 to 70,000 miles, but this can vary. Always refer to your vehicle’s manual for specific recommendations.
In some cases, a damaged DPF can be repaired, depending on the extent of the damage. However, if the filter is severely damaged or excessively clogged, it may need to be replaced.
If you notice your vehicle has developed poor acceleration, reduced fuel consumption or an illuminated check engine light, these could be signs your EGR needs cleaning.
EGR removal is not recommended as it is illegal in many regions as it may lead to long-term issues with your car, it increases emissions and can void your cars warranty.