Compression Ignition Addict
Join Date: Oct 2006
Location: Bend, Or
Thanked 49 Times in 47 Posts
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There is no issue pulling a chip off the J3 port of the PCM so long as there is no power going to the PCM. Some people think simply turning off the ignition is enough, however any time the key is in the ignition, the PCM has some power going to it, which is just enough to really screw up your night.
Keys in the pocket or on the floor board next to you makes sure this does not happen.
Otherwise, grab it and pull it out.
As to markings, no... No one does anything like that.
01 F-250 SC PSD,320k,16 Isspro Gauges, AFE-2,CCV Mod,IAH delete,map reg,Modded H2e, 6.0 IC, 230/100 from P.I.S, Studs, 910 springs, Forged rods, Water injection,Hydra chip-No Limit/Gearhead tuning, Swamps HVHF IDM, MBRP 4" dual's, Aero, 6" tip's, 4" Revtek lift, 37/12.5/16.5 MT's
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