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Darryl
Member Since: 20 Dec 2009
Location: oldbury West Midlands
Posts: 1212
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Hi all , How do I test my EGRs are performing as they should? I have a IID tool but not showing any faults at the moment but is there any way of looking into the egrs and if they are performing correctly, Car is very sluggish from cold and just doesn’t seem to have the performance it should, Suspecting sticking EGR
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7th Jan 2024 9:57 pm |
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garrycol
Member Since: 06 Dec 2010
Location: Canberra
Posts: 1119
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If you have an issue with an EGR it will immediately show a fault - the orange EML will come on. No light or fault codes mean they are working OK.
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8th Jan 2024 5:00 am |
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Darryl
Member Since: 20 Dec 2009
Location: oldbury West Midlands
Posts: 1212
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Thanks Gary, Wasn’t sure if it did show the EML or not ,
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8th Jan 2024 7:24 am |
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Worms
Member Since: 24 Sep 2023
Location: Highlands
Posts: 340
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On the GAP Tool you can look at the live values for the EGR valves. I've not felt the need to do this yet, but others on here might be able to talk you through the process, if you have a GAP tool. Previously:
2010 FL2 TD4e GS
‘93 Defender 110 200TDi CSW - still got this, non-runner on SORN.
‘87 Defender 90 4 cyl Petrol
‘83 110 CSW V8 - best ever!
Range Rover 2-door V8 (not sure of year - 4-speed box and vacuum diff switch)
Series III SWB Diesel
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8th Jan 2024 7:50 am |
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Darryl
Member Since: 20 Dec 2009
Location: oldbury West Midlands
Posts: 1212
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![2011 Discovery 4 3.0 SDV6 S Auto Fuji White 2011 Discovery 4 3.0 SDV6 S Auto Fuji White](../images/veh/fuji_white.gif)
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Thanks Worms, I’ll have a play on the IID and see what I can find, Still new to the IID so will have a run through it and see what happens
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8th Jan 2024 10:47 pm |
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Worms
Member Since: 24 Sep 2023
Location: Highlands
Posts: 340
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From memory, the IID will let you compare commanded valve position with actual, so you will need to run the IID while driving and watch the figures to see whether the valves are opening and closing properly.
One of mine sits in the 5% open position when it is meant to be closed, which means I get recurrent codes. At one point I managed to stop the codes re-appearing by using a spray can of EGR cleaner in the intake (after the air filter and MAF sensor) - this may have been coincidence, as I struggle to see how that could actually be an effective way to get a cleaner to the valves themselves. Fortunately my vehicle is too old to have an EML, so no potential MOT issues there! Previously:
2010 FL2 TD4e GS
‘93 Defender 110 200TDi CSW - still got this, non-runner on SORN.
‘87 Defender 90 4 cyl Petrol
‘83 110 CSW V8 - best ever!
Range Rover 2-door V8 (not sure of year - 4-speed box and vacuum diff switch)
Series III SWB Diesel
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9th Jan 2024 7:23 am |
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Darryl
Member Since: 20 Dec 2009
Location: oldbury West Midlands
Posts: 1212
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Thanks Worms, Will have to SWMBO to drive while I have a play , With the IID that is
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9th Jan 2024 2:06 pm |
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