I 've seen these meters shown in magazines -- Is it just a matter of installing an O2 sensor in header and connecting it to the guage ?? Somehow it all sounds too simple -- But , I have zero knowledge of these things -- Would enjoy some pointers --- THANKS in Advance -- DON / Fleet 51
The simplified version ... the same thing every modern vehicle uses to monitor burn without auto correct or in an older vehicle checking your plug colour on the fly.
AIR/FUEL METERS : Thanks guys for the input -- Now , Second question : Are these only used for high-end tuning ?? ( Racing ) -- I am looking for something that will indicate my mixture as I roll down the road. Not sure if this is it . Once again , Thanks and please chime in -- Any guidance is appreciated .---- LATER -- DON / Fleet 51
It will read the condition going down the road . It depends on the engine but as a base rich will be less then 12.5 and lean over 15.5 to give you an idea . so WOT around 13 , idle 15 and cruse some ware in-between. Not written in stone but like any other tool it allows you to see what happens when you make a change or something is up. the engine should be up to running temp to get a reliable reading. what you use the information for is up to you speed / fuel economy / both
There are several different types of 02 sensors and guages. The best would be a heated wideband o2 sensor which many high end A/F guages or aftermarket computers will use. they will generally measure accurately somewhere around 5:1 to 20:1 air:fuel ratios.
Most EFI cars used a heated narrow band sensor, which only accurately measure around 14:1 and 15:1 air:fuel ratios.
Many of the aftermarket guages use a single wire unheated wideband sensor which works fine, but you have to install it as close to the engine as possible so it heats up quickly because it has to warm up before it works properly.
HI RICK : Again , many thanks for your tips . Some of the terms are now beginning to make sense -- I appreciate the input from everyone -- LATER -- DON / Fleet 51
