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aftermarket tune

Practical Diesel Tuning

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Discussion and questions related to the course Practical Diesel Tuning

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Does anyone know how to open a locked tune for HP tuners. I have paid for a tune a while ago and it runs good but has too much timing. I just wanted to back off the timing so I can get it on the dyno and retune it myself. I just dont want to run this the way it is at all until I back the timing down. thanks.

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