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Thread: LTFT and STFT histogram filtered by Fuel Trim Cell

  1. #1
    Advanced Tuner
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    LTFT and STFT histogram filtered by Fuel Trim Cell

    It would be very helpful for us VE tuners to be able to see the LTFT and STFT histograms sorted by specific Fuel Trim Cells, that way we could do averages and high/lows for specific cells, without seeing idle and deceleration. I would really help out a lot!!!
    1998 Camaro Z28 M6: SLP Lid, Adj. Panhard, SFCs, CAGS!, Hotcam, Hooker Shorties, Katech Tensioner, Catback with Dynomax 17221 3\" Muffler, Mobil-1, Bosch +4s, 160 Stat, !EGR, !MAFless, !FRA, S3 TB

  2. #2
    Advanced Tuner Billf6531's Avatar
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    Re: LTFT and STFT histogram filtered by Fuel Trim

    Actually you can, with a little effort. Save your log as an Export type .csv, and then open it in Excel. Sort the file by the Fuel Cell column (Data:Sort), and then you can calculate the averages. The Fuel Cell column is the last column on the spreadsheet.

    Columns Q and R are the LTFT. Use the formula =average(Q-firstrowof your data:R-last row of your data) and you'll have the average LTFT for that cell. I usually put the formula in the cell to right of the last data point for that Fuel Cell. =average(Q2:R1234) is an example.
    Best regards,
    Bill
    Silver 2003 C5 roadster, M6, Euro red/amber tails, Z06 Ti mufflers, Z06 2 cat H-pipe, Z06 airbox, and HPTuners s/w - available to any Corvette or other GM vehicle in Calgary, and also for Ford and Dodge products, including Cummins