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    Tuned ECU issues ??

    hey guys/gals, 1st post on this forum although i've read many threads here. i have a 2001 jetta tdi, manual trans. i bought a tuned ecu from a trustworthy friend (from the exact same model/year/trans) and when i installed it and ran the car, it immediatly threw 6 codes.. stupid me, i put my old...
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