Drivbiwire
09-18-15, 06:12 PM #281
NOx is monitored 100% of the time at the catalyst, so there is NO WAY any TDI is out of compliance.
SCR (AdBlue Injector) is NOT activated 100% of the time, ONLY when the NOx sensor detects NOx output that is rising due to the EGR, Injection timing, and other systems not being able to reduce them in the combustion bowl.
VW Did not lie to the EPA, and this "Lie" is being taken out of context to further an EPA/CARB objective.
FWIW, you can monitor your NOx output while driving with VCDS in real time, and this range is almost always 0 regardless of load.
Pre-SCR systems use a filter that traps and oxidizes the NOx output. When the system detects rising levels it initiates a re-gen where fuel is injected post ignition to elevate NOx trap temperatures above the regen threshold.
Like I said, this is a Blackmail on the part of the EPA, VW will issue a recall, which will effectively do nothing to the car or how it performs. The software change will simply eliminate the "TEST" cycle so it cannot be interpreted to be thwarting emissions.
Its laughable to think some VWOA clown knows anything about a TDI, hell they can't even tell you how a TDI works much less how the software functions!
Do the voluntary recall, and get those 2016's rolling thru port... Moving on nothing else to see here.
