From Gas to Diesel/Emissions Question

[ein bora]

When I switch to diesel from gas what happens when I get an e-test done? Do they measure the results as if was gas - or do they now test it for diesel? From what I understand here in Ontario all the testing stations are hooked up to the d.o.t. and the results accordingly are formulated there, and are determined by your vehicles vin number. With the vin indicating that it is gas - it most likely will fail as a diesel, so I'm not sure what's going to happen or what needs to be done to correct the vin's information.

Any help appreciated. Thanks.

[Bugsy_malone 666]

it could depend, modern diesels give a better emission than modern petrols can achieve. So it may be the case you get better/different CO2/hydrocarbon output results than a petrol.

Whats on my mind is here in the uk when you do an engine swap, you have to fill in the vehicles papers, send them back to the central registering office to tell them of the changes and then get the papers back a few weeks later. Then when the vehicle has its next test it is tested as it is on the papers/registering office.

Do you not have that system over there? or is it illegal to swap engines or something?

Are there rulings on emissions for certain years?

Here in 1991 is the change over to Cat convertors and emissions got a bit tighter.

[Patrick]

Just had an emissions test done, asked the question when I was at the testing centre. The guy that owns the place said that at the moment, they punch in what they are testing, as in the vin means nothing other than that they have the right vehicle.
My truck is an '88 crew cab GMC that I put a perkins in, removed a 350 throttle body. Went to the licence office, she changed the fuel on the ownership no questions asked.

My plan on my current project is  to do the conversion, get the ownership changed to diesel, get it safetied and take it for an e-test. He says so far he tells the computer what the fuel is, so it shouldn't be a problem.
Best part is the test is just a visual for smoke at idle, no snap test.......

[nathan_b]

lol, just turn the fuel down for the test then crank it back up 10min later. These tests only work if everyone taking them is either dumb or submissive.

[mystery3]

lol, just turn the fuel down for the test then crank it back up 10min later. These tests only work if everyone taking them is either dumb or submissive.

In the part of California which I live the police do a pretty good job looking and listening for modified vehicles, pulling them over and checking things out. Of course with our diesels it's as easy as turning a screw but if you have to remove a turbo, cams etc to get smogged I think it could be a deterrent to modifying a vehicle. Also to do a legal engine swap or go gasser to diesel here you need to visit the referee at the state BAR (bureau of automotive repair) and have everything checked over mostly for consistency in emissions equipment according to whatever the donor vehicle. Then you get smogged, unless you have pre-1997 diesel in which case there is no smog check required.

[clbanman]

I did some searching yesterday and was unable to come up with the specific lines of legislation related to this in Ontario.

What I have been told is that for engine swaps, as long as the engine was available as a factory option, it's not too difficult.  You would just need to meet the requirements for that engine in that model year.    If the engine was not available as a factory option, the car would be classified as a "hot rod" and the emissions then must meet the specifications of either the chassis year or engine year, whichever is newer.   The intent is that you can't put a 1965 engine in a 2005 vehicle and only need to meet 1965 emissions.