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Potential Tuner
2014 Infiniti Q60 VQ37VHR write X7F NEGATIVE RESPONSE CODE
Tried to write transfer an edited tune for my Infiniti Q60 VQ37VHR but keep receiving a failed X7F negative response code.
I tried seeing if there were any updates but i'm using the latest software. The car reads perfectly fine but uploading tune to the car is a headache . The car was never tuned in the past.
HELP PLEASE. Much appreciated
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HPT Employee
99% of the time that error is thrown because the battery load is too high. Make sure that everything is turned off (i.e. headlights, radio, A/C, etc.) and then try again.
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Potential Tuner
Thanks i'll try to turn everything off