AFR Stuck at 14

[K4fxd]

Before you dump a bunch more money in it have some fresh eyes look at it.

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[K4fxd]

Are you using N Guage, sxt??

 

[shitstang01]

take a short vid of what it's doing. You reading from the dash ? Ngauge?

I’ll try to take a video, and reading from the dash it’s stuck at 14 and doesn’t fluctuate at all and reading from the nGauge it’s stuck at zero no fluctuations.

 

[shitstang01]

Not exactly sure how the nGauge works my dash isn’t showing any codes but I came across a read codes section and ironically they’re all o2 related.
O2 sensor heater circuit, PO155 & PO135.. why wouldn’t this show on my dash ? Glad I looked.

 

[yellowstangatl]

Check your fuses and if you are using extensions they might be bad.

 

[K4fxd]

Did you get this figured out?

I was doing some MAF tuning and I accidentally turned off the O2 sensors on my car and it held steady at 14.0 on the dash, and read 1.0 lambda on the MPVI2 logging software. Have your tuner go over the tune if you have not already done so.

 

[shitstang01]

Did you get this figured out?

I was doing some MAF tuning and I accidentally turned off the O2 sensors on my car and it held steady at 14.0 on the dash, and read 1.0 lambda on the MPVI2 logging software. Have your tuner go over the tune if you have not already done so.

Yes both of my o2 sensors were bad and had to be replaced making the car default to the stock tune somehow.

 

[LuisMor23]

Did you ever figure it out I am currently going through the same problem dash stuck on 14 and afr readings 0 just replaced my sensors today

 

[shitstang01]

Did you ever figure it out I am currently going through the same problem dash stuck on 14 and afr readings 0 just replaced my sensors today

Both of my o2 sensors were bad so the car seemed to reset to the stock tune somehow. Replaced both & reflashed my tune and immediately the car sounded different, drove different and felt different overall.

 

[yellowstangatl]

It doesn't default to the stock tune, but since it can't read the air fuel it defaults to the stoich of pump gas. Which, if on e85 will probably cause engine damage if you run long term.

 

[BrianGT2015]

Sounds like a bad extension. What I did when I had to do mine was just cut and added wire. Soldered them together, covered them with electrical tape, and wrapped the wire in wire loom. It looks stock. It's worked for about a year now.

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