Quote:
Originally Posted by Jagdpanzer
Depends on the road speeds the tests are done at. The stock chip activates the EGR valve above 17 mph if memory serves me. An active EGR is essential for achieving low NOX test readings. In Northern Virginia they do the low speed test at 15 mph which I was having a hard time passing a few years back. So I had Marc Haibeck lower the EGR activation point to 13 mph and easily passed NOX by 150 ppm.
Hydrocarbons should not be a problem provided the engine is in good tune and the cats are working properly.
Sent from my iPhone using ZR-1 Net Registry |
No road test in Oregon. You simply pull into a bay, let it idle and they do a sniffer in the tail pipe. My guess is since it passed in California recently, it will pass in either mode in Oregon.
I spoke with the previous owner and he said he did it in valet mode in California so I will do the same here. I'm gonna try and go today once the car is delivered.