Okay so with all the gauge pod deals going, I am getting gauges ready so that I can put the truck on the lift, and do all the mods at once.

I saw some mentions about having to have a widebane AFR gauge to work with our trucks. I am curious as to why.

Then the next question would be do we tie into the o2 sensor that is already there. If so will that cause issues with the PCM on this engine. If not, where are you guys putting the sensor in at, are you making a hole in the exhaust yourself, and welding a nut to it, or is there an open port with just a plug in it.

I havent put an AFR in a truck before, so sorry for the noob questions. All the AFR gauges that I have used in the past just clip onto the exhasut pipe, and you can tune from there. Never had a full time install AFR gauge.

Thanks for the info guys!

 

i dont know much about o2 sensors but im pretty sure the stock ones are narrow band. a wideband will give you a better more accurate reading. Blown287 another regular on here has a o2 sensor set up. he will chime in sometime im sure.

 

Unless you're going to be changing the tune of the engine, an AFR gauge is pointless, unless you like like dancing lights or digital readouts of something you have no control over.

The stock 02 sensor is a narrow band sensor.

A WBO2 read out requires a WBO2 sensor and controller. I have one installed in my Datsun, but only have it tied into the ECM for datalogging when I have my laptop connected, and for display on a custom display I have, that ties into the Assemble Line Diagnostic Connector, which I will occasionally look at.

 

Stock, the truck comes with narrowband. Its made to read a very narrow range of oxygen levels. For example, the truck will either read 0 for a perfect O2 level, -1 or +1 if a correction needs to be made. The signal actually isnt sent as a number, its sent as a voltage. Just trying to give you an example.

A wideband O2 allows for exact readings, so if your mixture isnt right you will be able to see the exact amount of correction needed in order to bring you back to the right mixture.

Narrowband isnt good for much more than stock when it comes to tuning. It would be near impossible to tune your fuel tables because you would never know just how lean or rich you were running. All you know with a narrow band is if your running rich, lean, or at an optimal mix. A AFR guage wouldnt show you proper readings coming from a narrowband for this reason.

 

yeahp...blown could tell you all about how he loves his Wideband! lol

 

It is more for future planning, Lets put it this way, at some point in time after my warranty runs out, this 4.7l is gonna be sitting in the floor, with either a 408, or 6.1 hemi going in. If I am gonna do all that I am gonna take the time to build a mega squirt, and tune the engine myself.

This was more just thinking for the future, and if I could hook it up already, great if not that is okay too.

 

I would get something that is more usable now, like a voltmeter, or tranny temp... or oil pressure... The WBO2 is said to have a limited accurate life, so you might actually wear out the sensor before you get another engine in there.

Uhg... MS....

 

Check this out.
http://www.iwsti.com/forums/gr-vendo...ms-review.html

Anyway, a wideband A/F gauge allows you to monitor the real time mixture of air to fuel in your engine. It's great for troubleshooting and is a must for running boost either turbo or blower. I welded an exhaust bung into my exhaust system and the wideband O2 sensor screws right into it. The wideband is a stand alone unit and will not effect the PCM.

Like said before, stock is narrowband and = nothing more than a light show. If you have custom tuning you can have your back O2 sensors turned off and you can unscrew one of the stock O2 sensors and put the wideband into its place.

If you watch this video you can see mine in action.
http://www.youtube.com/watch?v=13YqoP0li2k

 

Any excuse to post a video of your sick truck.....jk....it sounds fantastic!

 

Mine is the only G3 Dakota I know that has a wideband A/F other than Trucky. I never mind throwing up a video
Thanks brother.