Wide Band Strange?

[andrewshowers]

So I have a PLX wideband, installed in the rear o2 location.

Turn the key on and it reads 14.7, after about 2 mins it reads 19.99. From what I can read online that is normal.

Ok start the car and it reads 14~15 then after about 2 mins no matter what I seem to do it goes to 19.99. I've changed base settings on my maft and still it reads 19.99 at idle. If I drive the car under about 13 lbs of boost it reads 13 ish which seems a little rich but not bad at about 1/4 throttle.

Anyone else think I may have a bad sensor? Or have any experience with the plx wideband?

 

[punxnotdead185]

It seems like its acting normal to me, most I have dealt with have trouble reading at low rpms especially at idle.

 

[preludeachris]

can you simulate NB?

 

[Spoolin92GSX]

That's not right at all, why have a wideband if it doesn't even read correctly? I would check a few things: Verify your front/factory o2 sensor is working properly, check for exhaust leaks before the wideband sensor, I'm not personally familiar with the PLX units - do they need to be calibrated? If so check that as well.

 

[andrewshowers]

PLX says it does its own calibration every time power is applied. Yes it has a NB output. No leaks before the sensor. I will have my dsm link in this week and I will test the NB voltage in the front and compare.

Just wanted to see if anyone else had one of these units, or if they had seen a wb operate like this.

Thanks guys

 

[Spoolin92GSX]

When you get DSMLink you can just run it in the front position and use the narrow simulation within link, no hacking wires and easily disabled.