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The BMW Range
5 Series
E34
e34 smog test data
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<blockquote data-quote="viewfinder" data-source="post: 16106" data-attributes="member: 1704"><p>While topping up on air, I noticed the petrol station's mechanic actually has a bunch of vehicle test equipment. One of them being exhaust measurement device (proper name?). So I got the following reading:CO (I think that's carbon monoxide) = 0.00 (too good to be true?!)CO2 = 15.6 (vs normally 14.6 according to the guy operating the machine)HC (I think that's hydrocarbon??) = 79 (means what??)NOx = 0.997 (means what??)So, I have yet to make sense out of the raw numbers above. Has anyone done smog test before, or know how to make sense out of the 4 numbers combined?My regular BMW specialist place said their machine was broken... but I have never seen such machine before. While this no name repair shop has smog test machine, fuel injector cleaner machine, a giant don't know do what machine (has voltage meters), ATF flush machine, N2 air compressor, ...</p></blockquote><p></p>
[QUOTE="viewfinder, post: 16106, member: 1704"] While topping up on air, I noticed the petrol station's mechanic actually has a bunch of vehicle test equipment. One of them being exhaust measurement device (proper name?). So I got the following reading:CO (I think that's carbon monoxide) = 0.00 (too good to be true?!)CO2 = 15.6 (vs normally 14.6 according to the guy operating the machine)HC (I think that's hydrocarbon??) = 79 (means what??)NOx = 0.997 (means what??)So, I have yet to make sense out of the raw numbers above. Has anyone done smog test before, or know how to make sense out of the 4 numbers combined?My regular BMW specialist place said their machine was broken... but I have never seen such machine before. While this no name repair shop has smog test machine, fuel injector cleaner machine, a giant don't know do what machine (has voltage meters), ATF flush machine, N2 air compressor, ... [/QUOTE]
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e34 smog test data
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