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LTFT and STFT problems....

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Old Oct 21, 2005 | 10:00 AM
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Default LTFT and STFT problems....

When i check my car by the Auto tap the LTFT and STFT bank 1 and bank 2 always 0 so what is the problem ???
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Old Oct 21, 2005 | 10:29 AM
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are you in open loop? at what rpm are you at?
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Old Oct 21, 2005 | 11:55 AM
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at idle 1000 rpm and more !!!
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Old Oct 21, 2005 | 01:44 PM
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Any help .... ?
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Old Oct 21, 2005 | 07:28 PM
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You can drive the car warmed up for a good ways, get on and off the throttle and neither the LTFTs or STFTs change?
Does it log other parameters correctly, say RPMs, O2s, vehicle speed, etc? ....if it does then I don't have a clue.
If nothing logs correctly then it sounds like a hardware problem with either the cable or port (either end).
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Old Oct 21, 2005 | 08:35 PM
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be sure you are fully warmed up,and if it doesnt work check to see if it is recognizing the o2 sensors and if it is then its probably your software and if its not then its probably your car or the connection.
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Old Oct 22, 2005 | 12:06 AM
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You're in Kuwait and that's probably an export setup?
Do you even have oxygen sensors?
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Old Oct 22, 2005 | 11:38 AM
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Originally Posted by jimmyblue
You're in Kuwait and that's probably an export setup?
Do you even have oxygen sensors?
The problem is the other parameters is good RPMs, vehicle speed, etc !!

we have too many cars ( f-body ) and the oxygen sensors is perfect ???
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Old Oct 23, 2005 | 09:40 PM
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Originally Posted by jimmyblue
You're in Kuwait and that's probably an export setup?
Do you even have oxygen sensors?
They have unleaded gas in Kuwait, and the cars still have O2s, AFAIK.
They just have cheap unleaded gas.
But yeah, sounds like the pcm is not seeing the O2s.
I'm not really familiar with export versions, but it is my understanding that even the exports all have O2 sensors.
.....could be wrong, though, although that would imply a pcm set up for SD from the get go, eh?
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