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Old 05-17-2007, 10:28 AM   #1 (permalink)
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Do all LB7's have an EGR and CAT?

I am trying to do some research on blocking the EGR for better millage, but I am not sure If I even have one. I don't have a CAT but that could have been taken out by the guy who had it before me. Are these items only on California LB7's? If it doesn't have them then I would assume I have nothing to worry about blocking, or is there another millage robbing (emissions control)system in its place? Thanks ahead for any info you might be able to provide.
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Old 05-17-2007, 10:30 AM   #2 (permalink)
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most dont have em. If you got a fed emission truck you dont have it.

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Old 05-17-2007, 11:57 AM   #3 (permalink)
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My 2003 doesn't have either.
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Old 05-17-2007, 12:05 PM   #4 (permalink)
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i have an egr but no cat
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Old 05-17-2007, 12:15 PM   #5 (permalink)
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My 2004 did not have a Cat or EGR on it but a buddy of mine bought 2004 from the same dealership 1 month later and it had a CAT on it. So depends on where it comes from or where it was meant to go.
Old 05-17-2007, 05:02 PM   #6 (permalink)
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Where would the EGR be on an LB7? Is there a method I can find this kind of information out for my specific truck (such as looking up the vin number on a site somewhere)?
Old 05-17-2007, 10:11 PM   #7 (permalink)
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The RPO codes of your truck indicate what emissions system you have. One of the codes is the VCL code that means it's a flleet truck and it has EGR (The U.S. fleet program gives fleet owners with EGR a tax break of some sort). Lot of good it did me - I'm the second owner, and i ain't got no fleet.... There are other codes also. Kennedy has a list of the emission codes for LB7.
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Old 05-17-2007, 10:19 PM   #8 (permalink)
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I dont have either on my 04 LB7
Old 05-17-2007, 10:45 PM   #9 (permalink)
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Old 05-18-2007, 11:21 AM   #10 (permalink)
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I have an egr and put a egr blocker plate in. Installed 4'' exhaust did away with cat, but I have ses light on can`t get rid of light unless I take out blocker reset computer.Let me know if you find out something.....
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