RustRover Posted September 30, 2012 Share Posted September 30, 2012 I was reading the Haynes book about the EGR system. “The volume of exhaust gas recirculated is controlled by vacuum, via a solenoid valve. The solenoid valve is controlled by a fuel injection pump mounted sensor on models with a conventional fuel injection system, or by the EDC electronic control unit on models with EDC.” “A vacuum operated recirculation valve is fitted to the exhaust manifold, to regulate the quantity of exhaust gas recirculated. The valve is operated by the vacuum supplied via the solenoid valve” “Between idle speed and pre-determined engine load, power is supplied to the solenoid valve, which allows the recirculation valve to open. Under full load conditions, the EGR is cut off. Additional control is provided by the engine temperature sensor, which cuts off the vacuum supply until the coolant temperature reaches 40°C, preventing the recirculation valve from opening during the engine warm up phase” So if you remove the wired plug and the vacuum hose before the engine gets to 40°C the valve should remain closed, thus essentially blanking it? Quote Link to comment Share on other sites More sharing options...
BogMonster Posted October 1, 2012 Share Posted October 1, 2012 Yes, assuming the valve isn't jammed open, which is usually the reason for somebody deciding to do away with it, by which time it is too late... Quote Link to comment Share on other sites More sharing options...
IanS Posted October 1, 2012 Share Posted October 1, 2012 You do need to plug the hose otherwise you'll lose the brake servo....... And just removing the plug may throw up errors in the ECU. There is a write up of doing this somewhere (D2 boys' club?) Quote Link to comment Share on other sites More sharing options...
tuko Posted October 1, 2012 Share Posted October 1, 2012 Yes your theory is correct, cheap cheerful way of doing away with it's function while it's still there. Quote Link to comment Share on other sites More sharing options...
Nigelw Posted October 1, 2012 Share Posted October 1, 2012 Yes your theory is correct, cheap cheerful way of doing away with it's function while it's still there. might be handy for when the draconian laws come into play in a few years time??? I am still gonna take it off the 200 though, want to minimize hassle and maximize performance. Quote Link to comment Share on other sites More sharing options...
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