Anyone running a gauge like the Auto Meter 4379 ultra-lite wide band air fuel ratio kit?
CK5
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Anyone running an air fuel ratio gauge?
- Thread starter wazzabie
- Start date
I don’t have the autometer, I have an innovate. But looks like it uses the same Bosch 4.2 sensor. A lot of them do. The controller is where the reliability comes in. My first innovate lc1 was problematic and unreliable. The lc2 or lm2 I have now has been rock solid for years.
There is quite a bit of work to install though as a heads up. Wiring is very important.
I have an Autometer 3579 analog Sport Comp gauge I’ll be installing whenever the temps let up.
How should these be installed?
I ran an Innovate LC2 for many years in my '90. It helps with tuning, and can give you a warning that something is wrong before you hear it (usually an exhaust leak). The install wasn't too bad, I mounted my box under the seat and just brought the wires through the transfer case opening. You will need to make sure your exhaust manifolds aren't cracked or loose, and weld a bung in your collector or somewhere close for the 02 sensor...make sure it will be out of any condensation in your exhaust, as in don't put it in the easy 6 oclock position. The innovate kits allow/require you to calibrate the sensor in clean air before you install...not sure if the Autometer is set up that way or not.
I have an AEM brand. O2 wide band and a gauge. No separate box or anything. Ignition and ground wire, weld in the bung and go.
It just means the controller is built into the gauge. It probably still offers a 0-1V and 0-5V output for a factory ECM and aftermarket ECM. With just two wires, all you can do is look at the gauge, but you can't do anything about it.
All i needed to do was look at the gauge. So works great for my application. It was just to prove the tune on the carb was working without having to constantly pull plugs.
I would like to know if the engine is running lean or rich. I'm going to pull the plugs now that I have about 70 miles on the K5 since the carb rebuild. The engine seams to be running well but I would like to fine tune the carb adjustments. I've had to fix alot of things on this K5. The alternator went bad and the temp gauge is not working. I replaced everything fuel related, all soft and hard fuel lines, fuel pump and gas tank as there was rust in the entire system. The K5 is running with no smoke from the tail pipes.
What is nice about a stand alone AFR gauge is, you can see what it is doing at the different carb flow rates. It made tunning quicker. If you are running a supper tunable carb, it helps a lot. or is it alot?
I literally just finished welding the bung into Fugly's exhaust. Already had the gauge wired from the BBC in it. I figured I might as well put it back in.
I literally just finished welding the bung into Fugly's exhaust. Already had the gauge wired from the BBC in it. I figured I might as well put it back in.
Keep in mind that ignorance is bliss. Generally, the engine will only be at stoich under (some/most) steady-state conditions. As you get on and off the throttle, loads change, etc. you'll see the needle flipping all over the place. On the bright side, carbs have very few things you can adjust, so just seeing general trends is all you need. Knowing what is OK and what can be improved on is the key.
