Hey guys, when switching to a new ECM base tune, do I need to have the 3 prong diagnostic cable plugged in? I'm using the MM3 with Ray's tunes.
Hey guys, when switching to a new ECM base tune, do I need to have the 3 prong diagnostic cable plugged in? I'm using the MM3 with Ray's tunes.
2017 Ram 2500 Laramie, Taken care of by DRD, Carli Leveling Kit, RBP 94r 20x9 Wheels, and 35" Nitto Ridge Grapplers
1997 Dodge Ram 2500 Laramie, too many to list...
Yes you need that to be plugged in. For any ECM file changes it needs to be plugged in and I think for your RT tunes it needs to be plugged in as well. Either way it's best to have plugged in at all times.
X2 always need to have OBDll cable plugged in at all times unless your not using the MM3 monitor for gauges and RT tunes
2012 Cummins Ram 6.7L MM3 tuner full 5" Flo Pro TBE Exhaust LWBCC 4x4 Mag Hytec Double Deep Transmission Pan , Mag Hytec Rear Diff Cover
Airlift part # 57595 7500lbs airbags ,Nitto Ridge Grapplers 35/12.50/20 on XD 829 Big Hoss ll Satin Black Machined Dark Tint 20 x 9 with + 18 offset rims,MM3 Tuner With full Custom Tunes by Ray at DRD , Autometer A13117 Pillar Pod , Edge 98004 mount adapter , Mag Hytec front diff cover, SuperNova V4 LED Headlight Bulbs
Well that’s good to know! I changed ECM base tunes with only the MM3 plugged in. I’ll connect that cable and reload it. Thank you!
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2017 Ram 2500 Laramie, Taken care of by DRD, Carli Leveling Kit, RBP 94r 20x9 Wheels, and 35" Nitto Ridge Grapplers
1997 Dodge Ram 2500 Laramie, too many to list...
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