Just wondering is it possible to read a Bosch lsu4.9 sensor with just one wire on the "wideband" controller as my controller only has one wire input but has the option for narrow band or 5 volt sensor

I am unsure what to do with the heater though ?

Any help would be appreciated thank you

 

What kind of controller are you using? LSU 4.9 sensors must be connected to LSU 4.9 ready controllers

 

I am to ashamed too even say but it's a defi advance zd style 10 in one guage but it has the option to select if you are connecting a 5volt or 1.2v sensor but only one wire is allocated to the air fuel option on the guage

 

No it will not work since it requires the controller to properly heat the sensor at the right temperature.

 

Well I've found a few online apps with a audrino based board which utilizes Android phones etc i wonder if there any good

 

OP, I'm confused as to what you're trying to accomplish. Are you just trying to display the AFR on your Defi unit? What wideband controller are you running? It seem like you might be trying to run straight from the sensor itself to your display, the answer in that case is no, it won't work.

 

that gauge will work fine. you use the 5v output wire from the windeband controller that the lsu 4.9 needs to properly work. which wideband system are you using?

 

He does not have a controller. He has a gauge and an LSU O2 sensor.

Never used one myself. Post up a link to what you have found and someone might be able to chime in on if it's worth it or not.

 

That's what I got out of his post too.

 

Looks like i learnt the hard way i didn't realize a wideband controller was needed as well as the guage sorry for the time waste

 

Well, you have an extra sensor now. Just make sure you get a controller that uses a 4.9. Most of the good ones are moving over from the 4.2 if they haven't already. It's an awesome sensor.

 

^X2

Haven't had an issue with mine yet, 60k on it. (Knocks on wood) Ran a fresh air calibration @ 40k but it didn't need it.

 

They do just fine on big boy race cars too, and they're super fast.

 

Sensor was bought to tune a simple 4.0litre ford straight 6 motor on stock internals all it'll make is 280rwkw n that's pushing to limit that's sad isn't it dual cam 4litre n that is all lol

 

I'm currently using one of mine to play around with an N/A push rod GM 3.4L 90*V6. I'll be lucky to hit 250WHP to the front wheels. They are a great sensor no matter what the engine.

 

It's amazing these honda motors how much out put per litre we get. ..

So heater aside i can't just power the sensor then connect up the ref wire to this guage ?

I'm cheaper to ruin a sensor then to even do a single dyno power run here in Australia

 

No. That's just not how the sensor works at all. It has to be conditioned through a calibrated piece of hardware.

 

Got you i thought it was only calibrating the heater but Much more