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So what happens if we just let the EGR flap clog up (besides the ECU throwing a CEL)?
NOx emissions will increase but what else?
NOx emissions will increase but what else?
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Resident grumpy old fart
VW - Metallic Paint, Radial Tyres, Laminated Windscreen, Electric Windows, VW Alloy Wheels, Variable Geometry Exhaust Driven Supercharger, Direct Unit Fuel Injection, Adiabatic Ignition, MacPherson Struts front, Torsion Beam rear, Coil Springs, Hydraulic Dampers, Front Anti-Roll Bar, Disc Brakes, Bosch ECU, ABS -
To me, who is struggling with this - I'm think the EGR contamination is strictly 'post combustion'.(?)Originally posted by kaanage View Post
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I'm a pre OBD old man and accessiblity aside and creaking joints, I'm simply not equipped to cope anymore.....they're both in warranty anyway.
BUT I'm fascinated by advances in design and tech.
Personally, I think we're in the last decade of 'reciprocating' engines and their expenses but one thing is certain, change is accelerating and there are going to be winners and losers.Last edited by Ryeman; 11-08-2015, 10:42 AM.Comment
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Kaanage,If you have a diesel particulate filter it will also clog up...Last edited by stevan; 13-08-2015, 10:59 AM.MY10 6 speedComment
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Surely no more quickly than if the EGR was still working.
And what if you don't have a DPF?Resident grumpy old fart
VW - Metallic Paint, Radial Tyres, Laminated Windscreen, Electric Windows, VW Alloy Wheels, Variable Geometry Exhaust Driven Supercharger, Direct Unit Fuel Injection, Adiabatic Ignition, MacPherson Struts front, Torsion Beam rear, Coil Springs, Hydraulic Dampers, Front Anti-Roll Bar, Disc Brakes, Bosch ECU, ABSComment
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Dropping EGR increases EGT's which reduces soot. EGR is the DPF's enemy. The problem is the EGR valve and the antishudder flap will stall on the gunk, burn out, and the car goes into limp, on the antishudder flap specifically, as this is important to complete DPF regens successfully. I had a hell of a time completing regens with the EGR and antishudder flap removed on my old GT TDI, and I wouldn't recommend it as user friendly! Put my car into limp many a time.....2014 Skoda Yeti TDI Outdoor 4x4 | Audi Q3 CFGC repower | Darkside tune and Race Cams | Darkside dump pDPF | Wagner Comp IC | Snow Water Meth | Bilstein B6 H&R springs | Rays Homura 2x7 18 x 8" 255 Potenza Sports | Golf R subframe | Superpro sways and bushings | 034 engine mounts | MK6 GTI brakes |Comment
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