VW emissions
- Thread starter AmericanThunder
- Start date
Wow that is bad, 40 times worse emissions than they thought. Thats a good hefty fine. They shouldn't try to cheat the system.
However in the Trans-am it has an air pump to pump fresh air in the exhaust on start up. I guess this was to make emissions look good and possibly to get the cats up to temperature quicker. Making something that VW done which make emissions look better when the car isn't moving is a bit of a con. Cars should be tested on emissions on a rolling road.
I wonder if this is why my Kia has been reclassified at 105 CO2 when it used to be 99 CO2, so moving it from tax band A to B making it £20 a year to tax. I wonder if so many cars in a 1000 exceeded 99 CO2 so they just broadened the emission class to be safe.
However in the Trans-am it has an air pump to pump fresh air in the exhaust on start up. I guess this was to make emissions look good and possibly to get the cats up to temperature quicker. Making something that VW done which make emissions look better when the car isn't moving is a bit of a con. Cars should be tested on emissions on a rolling road.
I wonder if this is why my Kia has been reclassified at 105 CO2 when it used to be 99 CO2, so moving it from tax band A to B making it £20 a year to tax. I wonder if so many cars in a 1000 exceeded 99 CO2 so they just broadened the emission class to be safe.
AmericanThunder
Super Moderator
The airpump on the TA is purely to get the cats up to temperature quicker. A hot cat is more efficient than a cold one. This is why your airpump stops running after a couple of minutes from a cold start, and doesn't run at all on a warm start. I removed mine on my 4th gen.
But I have often wondered what it would do to the emissions if something simliar was routed into the exhaust system after the last oxygen sensor - would it give false readings to a sniffer test?
But I have often wondered what it would do to the emissions if something simliar was routed into the exhaust system after the last oxygen sensor - would it give false readings to a sniffer test?
Mine came off the car in 2007, not sure what I done with it, but it weighed quite a bit. Probably in the loft or in one of the boxes in the garage.
Made me chuckle, just had to share.
AmericanThunder
Super Moderator
Lolololol
I see that VW have admitted now its more than just the US market they have been cheating.
I see that VW have admitted now its more than just the US market they have been cheating.
lol
AmericanThunder
Super Moderator
lol
Lesser scandals have bought down governments!!
Lesser scandals have bought down governments!!
They keep popping up.
AmericanThunder
Super Moderator
VW's CEO has resigned
Yep, you are right there.
BMW stocks tumbled 9.8% to 71.95 EUR after a german magazine reported the test of the BMW X3 xDrive 20d sport utility vehicle showed the car emitted as much as 11 times the European limit for air pollution.
Not just VW under investigation, and I'm sure other manufacturers will be checked too.
Not just VW under investigation, and I'm sure other manufacturers will be checked too.
I'm sure their findings will point to the nut behind the wheel.
A recap: what is VW accused of?
The US Environmental Protection Agency (EPA) and the California Air Resources Board (CARB) found a 'defeat device' embedded in the engine management systems on the modern Volkswagen 2.0-litre diesel engine described as EA189, designed to lower exhaust levels of certain pollutants such as nitrogen oxides (NOx) substantially if the car was being emissions tested. When released back to the road, the engine would then pump out normal, higher levels - in tests the EPA found that NOx was 40 times higher when running in normal mode. VW admits 'while testing diesel cars of the Volkswagen Group they have detected manipulations that violate American environmental standards.' Volkswagen has now admitted the 'dual-mode software map' on affected diesel engines.
My thoughts on this.... What has VW done wrong? well nothing, they have made their cars cleaner when you are revving it when not driving. My opinion is that the testing is not good enough, to test emissions the car should be on a rolling road, not sitting still. So it's the test procedure that is at fault, not VW software. Anything that makes the exhaust cleaner can't be taken as a negative!. You want the car to be clean while sitting in traffic, as there are shed loads of traffic lights around now, so this is a good thing to have a clean car for not going anywhere.
The US Environmental Protection Agency (EPA) and the California Air Resources Board (CARB) found a 'defeat device' embedded in the engine management systems on the modern Volkswagen 2.0-litre diesel engine described as EA189, designed to lower exhaust levels of certain pollutants such as nitrogen oxides (NOx) substantially if the car was being emissions tested. When released back to the road, the engine would then pump out normal, higher levels - in tests the EPA found that NOx was 40 times higher when running in normal mode. VW admits 'while testing diesel cars of the Volkswagen Group they have detected manipulations that violate American environmental standards.' Volkswagen has now admitted the 'dual-mode software map' on affected diesel engines.
My thoughts on this.... What has VW done wrong? well nothing, they have made their cars cleaner when you are revving it when not driving. My opinion is that the testing is not good enough, to test emissions the car should be on a rolling road, not sitting still. So it's the test procedure that is at fault, not VW software. Anything that makes the exhaust cleaner can't be taken as a negative!. You want the car to be clean while sitting in traffic, as there are shed loads of traffic lights around now, so this is a good thing to have a clean car for not going anywhere.
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