Modis and Flexible Gas Analyzer

[Bodgit]

Hi,
I have a Modis platform v 10.2. Is the Flexible Gas Analyzer a useful option? Other than inspections, what do you all use it for?
Steve

[Trindaddy]

Got gas?

I know i will probably be chastized for giving my opinion again but here goes anyway. The fact that you have asked this question suggests you may not have had any exposure to one. I do not have one on my Modis but on my Sun Scope and have used one (on gasoline powered vehicles) for a long time. I feel they are not quite as useful these days, as modern cars do a great job of analyzing exhaust oxygen using O2 sensors and creating data for tools to display for us. Also, they do tend to require service/repair moreso than most of our tools these days. That being said, there is something beautiful about understanding the chemistry behind what comes out of a car's engine and what you can derive from it. Although modern converters make it difficult to analyze the gases at the tailpipe, when you need more input on the condition of a problem car the info can be very useful, especially when you suspect the O2 sensor(s) may not be operating correctly. Its hard to warrant the cost of these units these days. I think its a tool you could probably do without. I still love it when i get the chance to use it on old carburated cars and tough diags. Once, I had a cust for whom I installed a hydrogen gas generator in his Honda Odyssey. When we got through, we tuned the device perfectly using the 4 gas. Few tools are more satisfying to use IMO, and the knowledge of how it works is priceless, but i'm not sure how practical it is these days. I suspect the "voice of experience" on these forums may have some input and perhaps some current-day uses however, stand by...

[Bodgit]

Thanks for the input Trindaddy. I have an old CO meter I use on carbureted cars to tune the carb but don't have a 4 or 5 gas unit. I appreciate your input.
Best,
Steve

[sdsauto]

gasses

I must agree. The use of a 4/5 gas analyzer is an art form. When used by an experienced technician a lot of information can be derived from it. Yes, the maintenance is more costly than other diagnostic platforms, but even with CCC equipped vehicles they pay for themselves. And yes, there is little else more satisfying than achieving perfect 14.1/1 tuning using a 4 gas. Just my 2 cents worth. Have a great day.....