NY Does on vehicles that are tested. The new computer system actually
helps in that respect since it can bring up data on what is supposed to
be on the vehicle in regards to emissions controls. Then you just look
it over and see if those parts are there.
As for mods that are considered tampering.
Chips, Injector changes, Exhaust mods ahead of the cat., SOME air
intake kits, Thermostat altering are on the list. NY now plugs into your
vehicle and runs it. They check to see what parameters are out of spec.
and how far. They also look at trouble codes and drive cycles, IF for
example you just cleared a trouble code and haven't driven through a
drive cycle they can make you take it out and drive it and retest.
Upstate has just started with the onboard testing of vehicles with OBD
ports. I can see the full dyno testing coming real soon.
once more, Einstein:
when you 'change plugs and wires', you are REPLACING with a 'specified
part'that is the same as the original in the eyes of the EPA
when you swap to a lower-temp thermostat, you are changing to a
'non-specified part', you are making MODICATIONS that will affect emissions
I hopw this helps with your obvious comprehension difficulty
grueling years to get through tranny school at high school tech. Now
he thinks he has a doctorate. The only reason he passed was that he
out grew the other kids and could no longer fit the desk.
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