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Author Topic: No O2 data any more  (Read 3480 times)
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Doc
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« on: February 19, 2010, 02:15:40 pm »

Hi,
I've been using Scan XL for 2 weeks, but suddenly I can't get any data from the 02 sensors.  Angry
I'm datalogging MAF, VSS and 02, and all other data is fine, but the 02 sensors ( I have only 2 )
just show a flat line at 0V !

They WERE working until a few days ago.  Any ideas?  javascript:void(0);

NB  the engine is running fine, and there are no DTCs so I know the Lambdas are not faulty.

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NVMYZ28
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« Reply #1 on: March 16, 2010, 07:08:24 pm »

Did you get this figured out?  I'm having this same problem, except I just got the software so its never worked for me.

I just purchased ScanXL Standard w/ an ELM 5 Scan USB cable.

Everything works fine, I can data log my MAP, MAF, IAT, ECT, VSS etc.  However, I cannot for the life of me get the O2 sensor monitoring to work.

I ran the O2 sensor test, and they check out fine (See attached screenshot).  However, I have tried every O2 sensor PID in the graph setup... and cannot get O2 sensors mV's to display.  This makes me nervous because I'm not sure if the knock sensor monitoring is working either.  Hopefully 0 knock count is a good thing, but if my O2 sensors arent reading, maybe knock isnt either.

Car is a '97 Camaro Z28, LT1 w/ factory PCM.  Again, all monitoring workins (MAP, MAF, IAT, ECT, VSS) except for my O2 mv display.

Thanks in advance.

You can see in the graph screen shot that I have every bank 1 sensor 1 option enabled, trying to get at least something to display.  There is no difference for bank 2 sensor 1.


* Screen shot 2010-03-16 at 5.43.57 PM.png (95.3 KB, 1387x784 - viewed 381 times.)

* Screen shot 2010-03-16 at 5.40.52 PM.png (48.49 KB, 1078x384 - viewed 385 times.)
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NVMYZ28
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« Reply #2 on: March 16, 2010, 07:28:46 pm »

Never mind, I was able to figure it out.  I did an agressive verify on my car's PIDs and now its working fine.

Thanks!
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Pierre@PPE
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« Reply #3 on: March 16, 2010, 10:55:03 pm »

That was the ultimate is self-service. I'm gald you were able to get it to work.

Pierre.
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