EGR faults

EGR valve diagnosis and repair is handled by our sister company, Repair My AdBlue. They cover the same area.

An open engine bay with a laptop showing live engine data

What an EGR fault looks like

  • Rough idle or hesitation
  • Black smoke from the exhaust
  • Poor fuel economy
  • The engine management light, sometimes with limp mode

The EGR valve sends some exhaust gas back into the engine to cut emissions. When it sticks or clogs, the engine runs badly. Read our guide to exhaust gas recirculation.

EGR diagnosis and repair

Testing, cleaning and repair of EGR valves and coolers.

An open engine bay with a laptop showing live engine data

Repair My AdBlue

EGR valve faults, sticking valves and EGR-related limp mode.

EGR diagnostics and repair
A muddy 4x4 on a farm track

Off-road, motorsport and export vehicles

EGR software changes are only for vehicles that won’t be driven on public roads, such as track cars, off-road machines and vehicles leaving the UK. Message us and we’ll talk it through.