Tuning VE question
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From: Fort Myers, FL
Tuning VE question I've disconnected MAF, turned off LTFT, reset fuel trims and wanted to do logging via STFTs.
The problem is that I think one of my O2s is shitting the bed. At first, it's fine, then eventually it nearly flatlines, and my STFT maxes out on that bank. I'm basically just asking if the o2s are taken into consideration for STFTs or not while in SD mode. I'm assuming they are, which makes sense looking at my log.
The problem is that I think one of my O2s is shitting the bed. At first, it's fine, then eventually it nearly flatlines, and my STFT maxes out on that bank. I'm basically just asking if the o2s are taken into consideration for STFTs or not while in SD mode. I'm assuming they are, which makes sense looking at my log.
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Joined: Nov 2006
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From: Katherine N.T Australia
yes they are used in CLSD. If you must use STFT to dial in VE and not a more accurate WB its always good to know you have solid data coming out. If you are sure one sensor is talking bullshit.. Use the other one.
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From: Fort Myers, FL
How exactly would I disable the "occassionally" faulty sensor from making an impact on the STFTs? Isn't it a merged average in the histograms?
You can change your histogram from the average of the two sensors to whatever you want. I'd try to stop logging the faulty one in your config and see what happens to your histogram, then go from there.
or..........
Get a new O2 sensor and change it out.
or..........
Get a new O2 sensor and change it out.
Just replace the O2 if it's on it's way out though, it's like a 3 minute job.
I've disconnected MAF, turned off LTFT, reset fuel trims and wanted to do logging via STFTs.
The problem is that I think one of my O2s is shitting the bed. At first, it's fine, then eventually it nearly flatlines, and my STFT maxes out on that bank. I'm basically just asking if the o2s are taken into consideration for STFTs or not while in SD mode. I'm assuming they are, which makes sense looking at my log.
The problem is that I think one of my O2s is shitting the bed. At first, it's fine, then eventually it nearly flatlines, and my STFT maxes out on that bank. I'm basically just asking if the o2s are taken into consideration for STFTs or not while in SD mode. I'm assuming they are, which makes sense looking at my log.
Fuel Trims, short or long are a completely different component of the beauty of internal combustion.
In short, yes they are taken into consideration.
