Hey, everyone. I?m new to tuning and using hptuners for the first time. I?m building a fresh motor for my 04 Yukon and I?m familiarizing myself with everything ahead of tuning for larger injectors and a bigger cam.
Using my MacBook Air running windows 7 in bootcamp the read vcm operation times out after 20 minutes and 15% complete. Using my wife?s brandy new Lenovo on windows 10 I was able to read the VCM but it took 70 minutes!! I had a jumper pack hooked up to keep the battery from getting too low. At some point the voltage dropped to 11.8 so I scrambled to grab my 1amp trickle charger to assist. (I know it?s not recommended to have a charger going at the same time as a read or write, but low voltage seems worse.)
Now that I have the stock file saved and ready for tweaking, I?m weary of problems writing to the PCM. My understanding is that this PCM should take 5 minutes read... It previously had a diablosport tune but I put the stock file back in to read the VCM.
Any assistance is appreciated. I?m not sure if this is a question best left to the HPtuners support team.
Dan