Did you buy this unit new or from a previous owner? It is possible there is an on-board EMS system in addition to your portable unit? That would explain the 2+ min delay and the 5+ min delay when you use the portable PD unit.
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Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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