narrowband vs wideband

chowetime

chowetime

Active Member
I am thinking of installing a wideband gauge but from what I have read is that for this to be fitted I need a AM ECU is this correct...

Reason for installing it is that with the new engine I would like to see what the A/F are doing at start up and what needs to fixed changed etc

or is there another accurate way of doing this
 
You can get ones that have it all incorporated into the gauge, AEM have one and Innovate have one. The Innovate one is glitchy though, mine stopped working on the weekend and now I have to trouble shoot it and find out if it killed the o2 sensor :-( Wish I'd gone for AEM.
 
I run AEM and it is decent. Nearly all software i come across has it built in. THe one i have i got form hens and it incorporates the computer inside the gauge. There is also a 5v signal output from the gauge which can be datalogged vs whatever other outputs you have via the use of serial to usb or equivalent adapter.


When installing the wideband ensure the mounting geometry is correct as per the manufacturers instruction. I have also head that they do not like to be turned on and off before fully warming up (i.e. between the ingition on and the engine starting), so the best way to run them is via a dedicated switch connected to the battery (much like how HIDS dont like on and offing).

However if your wideband is used to run the car....running it off the ignition is reallly the only practical way, so I guess it cant be a huge issue. Just remmeber to install it pre-cat and not tooooo close to the manifold (mainly in turbo setups).
 
ok cool I was looking at the AEM ones they have the digital read out as well and not that expensive - less than $200. so I could install it just after the 02 sensor on the exhaust manifold, I have a fog light switch that is not in use so I could connect to this as my switch... and I do not need a aftermarket ecu to run it... excellent I know what my next buy is...
 
Im runnin an AEM wideband, its 1 of the best ones out there IMHO

They are a standalone unit, no need to connect to ECU, make sure you bung the sensor further down the line near the catn converter, and mount it between 10 o'clock and 2 o'clock position, that way you wont foul the sensor with moisture
 
old sold a number of AEM UEGO units.
Used them on all the cars ive tuned and on my own car too without problems.
Also used a bunch of Innovate units as well as an LM2 for tempory installed just for tuning and checking of air fuels..

If you want to use a wideband kit, then as it has narrowband simulation then you just splice it into your ecus o2 sensor wire and remove your original narrowband with a bung plug or use the wideband sensor in place of the narrowband.
I dont fully recommend this way since depending on their it is and especially on turbo cars the additional heat in exhaust gas wil reduce sensor life.

You cannot use a NB sensor for anything other them finding out whether your air fuel is richer or leaner than 14.7 or at 14.7.
If the reading at 14.7 the reading will oscillate.
If it is leaner or richer than 14.7 the reading will be at either extremes.
 
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