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03-30-2023, 11:21 PM | #1 |
Junior Member
Join Date: Jul 2010
Location: Goodyear, AZ
Posts: 65
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Determining Emissions Equipment
How would I find out what emissions equipment originally came on my truck? It's a 1978 GMC C15. Bought new here in Arizona. The RPO Code says NA2-Standard Emissions system. I only have charcoal canister, and catalytic converters. No smog pump or ports in the exhaust Manifolds. It's a 250 inline 6.
I'm getting ready to go through emissions test for the first time. The truck hasn't been registered in years. Thanks. |
03-31-2023, 10:28 AM | #2 |
Senior Member
Join Date: Mar 2003
Location: Colfax-California
Posts: 8,634
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Re: Determining Emissions Equipment
I don't have my books anymore that listed equipment required, so you'll have to take a short trip to an inspection station and get a list of requirements from them. Unless somebody else here has that info and it is accurate for your truck and state
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03-31-2023, 11:01 AM | #3 |
Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,226
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Re: Determining Emissions Equipment
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Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
03-31-2023, 01:52 PM | #4 |
Registered User
Join Date: Jun 2014
Location: CO
Posts: 749
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Re: Determining Emissions Equipment
Does it still have the emissions sticker on the radiator support? If not I would just make sure EGR is hooked up besides what you already have now. That is what CO goes off of but honestly I do not think these young techs even know what they are looking at when they see a carbureted engine.
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03-31-2023, 02:10 PM | #5 |
Junior Member
Join Date: Jul 2010
Location: Goodyear, AZ
Posts: 65
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Re: Determining Emissions Equipment
Thanks for the Manual Keith. That helps. It does have that little radiator sticker, but it's faded. I agree though, I'd be surprised if they knew what they were looking at.
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