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Advanced Tuner
Can't read new ecm that has been unlocked by HP tuners? Failed to start?
I have a 2018 Charger we are doing a 392 swap on. Had a 5.7. Sent the ecm out to HP to get unlocked and I can not read the new ecm. Everytime we link up it just says Failed to start.
Any ideas?
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did you connect the smart key?
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Potential Tuner
2018+ Vehicle need the HP Tuners Smart Access Cable installed to do any reading/writing.
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Advanced Tuner
Lame, just tossed one in. Is it something we leave in the customers car or just install and remove it every time. Seems like a huge pita to do that every tune job