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IM240 Emissions Test requirements

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Old 08-05-2012, 10:35 PM
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IM240 Emissions Test requirements

So I didn't manage to catch a passing emissions test from the roadside vans, and have to go in for an e-test for my upcoming registration. Unfortunately my truck is just on the year cutoff where it has to run the stricter dyno test.

What I'm most concerned about is the visual inspection, as I took most of the stock engine equipment off and ****-canned it long ago.

What will they be looking for on a 1982 F100? Cats, EGR, AIR pump I can think of off the top of my head, what else? The EGR and AIR I can fake back together, and I'll probably go ahead and put cats back on. Will they want to check any part of the EVAP system besides the fuel cap? Charcoal canister need to be in place?

If anyone has had to go through this test can shed some light on their requirements it would be most appreciated.
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Old 08-06-2012, 04:39 AM
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not sure yet, I need to get a fuel pump into mine before taking it over, but i would be interested in knowing how it goes.
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Old 08-12-2012, 04:45 PM
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I believe they now do mostly exhaust readings and air thermactor. Through a cat back on and your evap canister along with your smog pump and you should be good. However I do believe the switch tests every 3rd vehicle. One will be strictly under hood emission for 3 cars then for fuel system for 3 and exhaust for another 3. I have seen them do all 3 tests on one vehicle as well.
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