STFT's and LTFT's?
04-12-2002, 12:38 AM
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STFT's and LTFT's? I've read the guide on C5Forum and understand the need for monitoring the L trims, but why monitor the S trims. What value do they give in the tuning process and what is the "desired" value. With the logging of L trims, is this at daily driving (cell 19)that you want to stay close to 0 as possible or just at idle (cell 20). Sorry for all the Atap questions. The boards are my main resource for this info.
04-12-2002, 12:45 AM
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Re: STFT's and LTFT's? You are pretty much right - s-trims are realtively worthless. I would just log your l-trims and worry about them - you can effectivley ignore the other.
Chris
Chris
04-12-2002, 02:48 PM
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Re: STFT's and LTFT's? Better read that C5 article again ... it's the AVERAGE of cells 1-19 taken over a long enough period of time to produce a "decent sized file" to obtain results. This means several miles (10 - 20?) of varied driving, including some WOT runs to check out the O2 readings.
The larger the log file, the better for getting accurate statistical results.
Bill
<small>[ April 12, 2002, 02:49 PM: Message edited by: BillC99SS ]</small>
The larger the log file, the better for getting accurate statistical results.
Bill
<small>[ April 12, 2002, 02:49 PM: Message edited by: BillC99SS ]</small>