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Gear Compensation - Question about my tune. Why decrease fuel in 4th gear?

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Old Dec 24, 2012 | 08:30 AM
  #1  
TB123's Avatar
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From: Moscow, Idaho, usa
Default Gear Compensation - Question about my tune. Why decrease fuel in 4th gear?

I lost my tune file and was forced to download the calibrations from my s300 ECU. I am worried that some of the information was not transferred correctly.

Some of the parameter values look strange to me. For example, all of the gear compensation values are set to 0 except for 4th gear. 4th gear is 2deg retarded and fuel is cut by 5%. Is there a reason that my tuner would have chosen to decrease fuel only in 4th (it's a turbo gsr)? This doesn't seem right to me...
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Old Dec 24, 2012 | 12:05 PM
  #2  
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Default Re: Gear Compensation - Question about my tune. Why decrease fuel in 4th gear?

Originally Posted by TB123
I lost my tune file and was forced to download the calibrations from my s300 ECU. I am worried that some of the information was not transferred correctly.

Some of the parameter values look strange to me. For example, all of the gear compensation values are set to 0 except for 4th gear. 4th gear is 2deg retarded and fuel is cut by 5%. Is there a reason that my tuner would have chosen to decrease fuel only in 4th (it's a turbo gsr)? This doesn't seem right to me...
Why don't you call your tuner & ask for the calibration file & also ask about the gear comp tables?
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