Are A/F gauges hard to install? Do I have to get one pacifically for my truck or will any A/F gauge work? I have a 2007 FX2.

 

I think most everyone here will agree that anything other than a wideband A/F ratio gauge is a waste of money. I have a autometer wideband in my truck, install was pretty easy, run power for it and have a exhaust shop weld in the bung for you and screw the probe in. They mount pretty much like an o2 sensor.

 

get the Autometer one...it's about $300 for the entire kit...but you get the gauge, wiring and the wideband 02 sensor.


don't waste your time or money unless you are running a wideband with the a/f

 

Tylus, what do you mean by wideband?

 

your OEM O2 sensor is only designed to sense a certain range...these are made up #'s, not real




lets say OEM sense from a 10-14 on a scale of 1 through 20


a wideband will sense from say an 8 to a 16 (or better) of that 1-20 scale.


since the wideband has a better scale to monitor, it is more functional for monitoring the parameters of the engine. they are also more sensitive

 

Narrow bands only work in the 14.2 -15.0 range. The ecu is always trying to target 14.7 for the best performance.

Wide bands cover everything else outside of those ranges. You really only need a wide band 02 if you are using a power adder. Most wide ban setups come with logging software for street tuning. Make a pass, pull the log, and adjust the fuel curve/trim as necessary. They are a great tool for making sure you have enough fuel when you take a power adder rig off the dyno. Most dyno's don't load trucks/cars like real world environments. More load = more fuel. Most of the time your truck will use more fuel when it is off the dyno... i.e. wind, grade, weight. Wide bans can save a motor when pressure is dropping off in a forced induction car, as they build boost they also build fuel psi on top of the normal psi which is mostly something like 39 + 1 psi per pound of boost.

 

narrow bands are worthless and will tell you nothing

 

its wideband or nothing. to help clarify, stock o2's are narrowband and run between 0v and 1v. a wideband runs between 0v and 5v. much more accurate and stable