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TDI (Diesel) Emissions This is a discussion about emissions from TDI's. Pro's cons of Diesels (including biodiesel) effects on the environment and how they compare to Gasoline and other fuel sources for Internal combustion engines.

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Old February 23rd, 2020, 06:45   #1
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Join Date: Nov 2014
Location: Michigan
Fuel Economy: 46.4mpg
Default Anyone familiar with New Hampshire emission testing?

Let me clarify (my mistake, didn't have my coffee this AM)
Have a 2015 that has no aftermarket mods and never received the diesel gate "fixes" (phase 1and 2). There are no check engine lights on. In its current form would it pass NH testing?

Last edited by sands80; February 23rd, 2020 at 08:37.
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Old February 23rd, 2020, 07:49   #2
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Location: Round Rock, Texas

It should given what you stated.
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Old February 24th, 2020, 14:05   #3
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Join Date: Jun 2002
Location: Nashua, NH, USA
Fuel Economy: Who cares? It's a DIESEL! Great fuel economy comes as a bonus!

Dieselgate fixes or not will have no effect on NH emissions testing. NH is fairly mod-friendly provided mods don't affect the ability to pass an OBD-II scan. NH emissions testing only requires passing an OBD-II scan.

My heavily modded 02 Golf TDI and modded 05 PD Jetta Wagen TDI never had a problem passing emissions testing in NH. Same with my 2010 JSW TDI. My 02 Golf and 05 PD JWagen were capable of burying a Prius in "Prius Repellent" when I planted my right foot but had no trouble passing the OBD-II scan.

I have since moved on from VW TDIs to BMW Advanced Diesel. I had already moved from VW to BMW a couple of years before the Dieselgate scandal broke.

To pass an OBD-II scan in NH, the CEL must not be illuminated, the ECU cannot have any stored codes, and must pass readiness. You are allowed to have 1 readiness monitor still in a "not ready" state and still pass the OBD-II scan.

Welcome to NH!
Why DIESEL is better: (Courtesy TDIclub forum member wxman)
PM - https://sites.google.com/view/lmarzccm/home
Air Toxics - https://sites.google.com/view/loren-marz-ccm/home
Ozone Precursors - https://sites.google.com/view/lorenmarz-ccm/home
General - https://sites.google.com/view/emissions-general/home
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