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Discussion Starter #1 (Edited)
having used several differant models all I can suggest is that you buy a matched kit , or matching parts and NOT try to cobble something together expecting good readings that you can trust

http://store.summitracing.com/partdetail.asp?part=EDL%2D6593

http://www.jcwhitney.com/webapp/wcs/stores/servlet/ProductDisplay?storeId=10101&productId=70&catalogId=10101&langId=-1
but keep in mind the pre-heated three wire O2 sensor types and the placement of the sensor as close to the engine as possiable in the collector of the header tends to give better info you can use!

if your interested heres wide band info

http://www.diy-wb.com/
 

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Discussion Starter #3 (Edited)
no, they are not really used the same way, but this summit fuel air meter could be used with a 3 wire preheated exhaust sensor without much extra work and reasonable expence . the idea is basically to keep a close eye on the engines fuel/air ratio, as long as it stays between approximately 14.8:1 on the lean side and about 12.7:1 on the rich side your engine will make good power.
14.7:1 is ideal for emission testing
12.7:1 is ideal for max hp/tq but dirty for emmissions
useing the meter allows you to spot problems like bad injectors,bad sensors,fouled plugs,clogged filters, bad cats, ETC
this generally makes the car run much better because most cars are out of tune for long periods before the owner realizes it simply because the loss of power tends to come very gradually

if your interested heres wide band info

http://www.diy-wb.com/
 
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