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Here in southern Ontario all diesels get hooked up now.The test use to be just check the gas cap was there and clicked, then they walked around it to listen for an exhaust leak and watch for smoke from tailpipe. That'll be $87 thank you. lolYou said they do a snap test. That is what they do here. The machine reads the density of the smoke when snapped.Just recently I had a no start problem and found it was because the rubber boot was all caught up in the spring on the fuel shutdown . I'm not sure if this was why it was having trouble passing the test or if this is a result of poor workmanship when they were working on it. I just removed the boot for now and will have to shop for a new one. Knowing the way they do things here they'll want me to buy the whole part not just the boot. lol

Picked up truck today.Along with it came a bill off $700 and change !!!!!!!After first fail of 30.8 ( limit is 30.0 ) so I dove it to clean carbon, brought it back and had them change oil, and oil/fuel filters before retesting. They said it failed again so they wanted the ok to check valves and timing and I ok'd that.Didn't here from them Monday so I stopped in and found they were done with itLooking at the bill I found they removed the injectors and brought them in for testing.The were found to be fine.I argued the bill because I didn't agree to the injectors being removed and the fact that they were fine says it did ME or the truck no good to have this done.They agreed to take $100 off but it's still a big bill for an oil change and e-test.As his wife worked on lowering the bill he continued to tell me these systems are all hard to get a pass with the lower requirements we have.I asked how it could pass if nothing was done so he said he wouldn't say what he did but he played with the pump.He said he has to do it to most 12v's to pass them.Likely as was mentioned in above reply posts above with limiter and star wheel.Obviously there is a problem with these tests if that's the case.I sure don't like the idea of them flooring and holding the rpm the way they do !!!That can't be good for it.Least I don't have to worry about it for 2 years..

Thanks for the replies guys.It's in the shopThey will be checking the valves and timing.Hoping that will fix it.It's my first Cummins so maybe I really haven't felt it's stock power yet. :)Anytime the US plans on doing something stupid like E-tests and/or going metric Ontario jumps in both feet but the US smartens up and backs out in most areas.No matter how dumb it is, Ontario instead of backing out they tighten things up...

Thanks for quick replyI will look into both links you gave..

My truck is stock and only 119,000 km but it failed the emissions test today.This is an opacity test.Reading was 30.8% (just over the required 30.0%Oil was changed and filters changed (intake, oil and fuel) recently.Because it gets mostly city driving they suggested I take it out for a beating and come back so I did.It failed again, this time in the low 40's??!!The only trouble I've had with the truck in the year I had it was shifting points so I played with the TPM to correct it when I got the truck.Does the TPM talk to the main computer to adjust fuel delivery?Could this be why I get the black followed by white smoke at kick down? THANK YOU IN ADVANCE FOR ANY INPUT.

I don't know how we can answer this post.You told us you have a leak but only said where it was dry.Where is it wet?